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What obvious adult discoveries made you feel a bit of a plonker?

691 replies

Airconfan · 21/09/2026 00:36

What’s something you learnt as an adult that made you think that’s completely obvious and yet I have never considered that….i feel like a bit of a plonker?

Mine was when taking tablets, the more you drink with it the better it will dissolve. I think alot of tablets are testing with the assumption people will drink 250ml alongside it.

OP posts:
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11
Airconfan · Yesterday 09:13

When you start a thread in the middle of the night as your breastfeeding and it provides lots of information to help keep you awake. I feel like I’ve learnt loads!

OP posts:
3ciLop · Yesterday 09:14

VenusThighTrap · 21/09/2026 10:53

Why did the chicken cross the road?
to get to the other side

I did not realise until someone pointed it out recently that other side = death.

I'm not sure they are right.!

Takethehuntingquiche · Yesterday 09:18

Airconfan · Yesterday 09:13

When you start a thread in the middle of the night as your breastfeeding and it provides lots of information to help keep you awake. I feel like I’ve learnt loads!

You might want to fact check some of the claims though! Although most have already been corrected

iloveanearlynight · Yesterday 09:22

Emperor penguins are absolutely HUGE! I thought they were calf height like the others. They can be 4ft 5 or so.

unlimiteddilutingjuice · Yesterday 09:37

farmlass · 21/09/2026 10:42

You are sort of right with Elliot Ness
He was one of the agents/cops in the film “The Untouchable’s” hunting down Al Capone .
I can now envisage Nessie swimming down the New York sewers .
I think it was a true story and a fantastic film with Sean Connery and Kevin Costner and Robert de Niro

I was aware of who Elliot Ness was.
I'd thought that the writers of the Family Ness had been making a clever joke.

whatisheupto · Yesterday 09:46

On the bird theme.... I realised aged 45 that nests are only used for a couple of months for the eggs and baby chicks. I thought birds used them all year round and just made new ones every spring!

HowardTJMoon · Yesterday 09:48

TheDutchHouse · Yesterday 08:07

Hiding head in shame as I type lol
But years ago I used to think that if you cut and pasted on your mobile using your finger , you must use the same finger to paste as it was somehow on your finger !
it took someone seeing me do this to realise!

I love that!

WitchyWelshy09 · Yesterday 10:25

Until I was about 38, I thought that a yellow dandelion and a dandelion clock were two different flowers. Like different varieties of dandelion. Just never made the connection, obviously makes sense now 😂

springvegetables · Yesterday 10:39

realsavagelike · Yesterday 03:52

I had one Fallopian tube removed after an ectopic pregnancy and went on to have 3 children via the other tube. i thought my chances of conception would only be every other month, depending on whether the egg had been released on the same side as the remaining tube. Apparently that's not the case - one ObGyn explained that the fallopian tube kind of wafts around and is capable of picking up an egg released from either ovary!

I got pregnant on my next cycle after mine. He’s nearly 5 now. I always picture trees on scary cartoons wafting away lol

JackandVictor · Yesterday 10:43

That approximate means close to not exact. as a child I read a lot on my own and I always understood. approximate to mean exact... it might explain why maths was not my strong subject at school 🤣 there were other words as well. I had the wrong understanding of - I can't think of them at the moment though...

Thinking of it. it's possible that there are more I don't know that I don't know yet 🤣

TessTickle0 · Yesterday 10:54

Datgal · 21/09/2026 10:56

This made me chuckle. I get a lot of 'froth' and it goes everywhere. So much so, my boyfriend always comments on it and it makes him laugh. He doesn't really get much. And it's not like I'm using tons of paste either. I don't get it 😂

This is me.
It's dripping down my chin,sometimes slops onto my top..
No one else in my family.have this problem.
I think it's because I wet.the brush first(this is how I was shown by my.dad,i always rinse..kinda have too)
I also use an electric brush but move it.like I would a Manuel which i think creates more froth and spit

metalstrawsarecoldbutnotsoggy · Yesterday 11:15

HRTQueen · 21/09/2026 14:24

That Timbuktu is an actual place

i I thought it was a mythical place close to China until a few years ago

I was watching a travel program and they went there, nothing like how I had it pictured in my mind

I always thought Timbuktu was fictional too, until I was in my 20s! Also I thought Kathmandu was made up, especially as I heard a story when I was a child about cats going to visit Kathmandu!

JudgeJ · Yesterday 11:18

x2boys · 21/09/2026 09:57

Is he from the north west of England ,? I live in Bolton and
I have heard osscpicle ( hospital) Boccle ( Bottle ,Sangals ( Sandals )

Morning fellow Notlob'er, oddly I only found out that Monty Python first called our esteemed town Notlob, it was in the Dead Parrot sketch. I remember all these words and many others, my Dad would talk about a prestinct and would have it that it was precint, no middle t . Someone else has mentioned chimley, I recall chimbley being used. Sometimes miss the old town but have read some sad things about it now.

JudgeJ · Yesterday 11:26

SabreIsMyFave · 21/09/2026 20:33

Oooooh, I've got another one. I thought (and so did my DH and DC) up to about 15 years ago, that Buffalo Wings were made from actual buffalo, (like beef.)

Didn't know they were just chicken, and the Buffalo Wings recipe originated in Buffalo New York, State.

Have you never tried Rocky Mountain Oysters?

unlimiteddilutingjuice · Yesterday 11:27

Mandaxx25 · Yesterday 02:49

There was never a police Nessy in the kids TV show Family Ness, named Elliot Ness. I have a very clear memory of this happening, but as far as I can find out, it never did. No idea why my mind made this up for me.

I remember this too!!!!!

No Way!!
Maybe it was real!

GreenCaterpillarOnALeaf · Yesterday 11:29

At work I used to drink this pickle spritz (pickle juice, lemon juice and sparking water with ice) to be “healthy” and I would always wake up puffy and I didn’t know why until my how husband told me salt makes you retain water.

This one is also genuinely really embarrassing but I didn’t get my period till I was almost 17 so don’t judge. I thought you could hold it in like a wee and I just thought people who used pads were kind of lazy. Thank god I didn’t fucking say this to any women, I actually said it to my gay friend in passing and he looked at me horrified and said “no babe, that’s not how that works” and explained it to me.

I’ve tried to rectify this with my own kids, they are 6 and 7 and know about periods. The youngest doesn’t know - I thought we should cover shapes and colours before we do the menstrual cycle lol. I’ve also tried to explain it in a way that won’t scare my daughter, as I remember being terrified to get my period because of my mum and sister talking about cramps.

dizzydizzydizzy · Yesterday 11:37

Squirrelsnut · 21/09/2026 07:06

My dad, an intelligent and well-read person, somehow got to adulthood thinking that it was 'chimley' not chimney.

lol! Reminds me of a former friend who was a personal trainer and used to say ‘skelington’ (for skeleton) even in her 50s. I didn’t have the heart to correct her, although I was waiting for her to tell me one that that she had realized her mistake but she didn’t. She is in her 60s now and almost certainly still says it like a 5yo! 🤣

Cailin66 · Yesterday 11:52

ERthree · 21/09/2026 15:10

Holland is a country. Brits call it Holland or The Netherlands. The Dutch call it Nederland.

Holland is not a country, but it was referred to in English as Holland a country, which is in fact the name of a Provence. The correct name for it in English is The Netherlands. which is what the Dutch prefer it to be called nowadays. Their Dutch word is indeed Nederland.

They have a wonderful magical theme park for younger children called Efteling. (Fly into Eindhoven)

Bargarran · Yesterday 12:08

Cailin66 · Yesterday 11:52

Holland is not a country, but it was referred to in English as Holland a country, which is in fact the name of a Provence. The correct name for it in English is The Netherlands. which is what the Dutch prefer it to be called nowadays. Their Dutch word is indeed Nederland.

They have a wonderful magical theme park for younger children called Efteling. (Fly into Eindhoven)

Holland was a former province of the Netherlands. Now it's North Holland and South Holland.

Cailin66 · Yesterday 12:19

Bargarran · Yesterday 12:08

Holland was a former province of the Netherlands. Now it's North Holland and South Holland.

Well I was trying not to be too pedantic. So while we’re on it, Tipperary, an actual place, both town and country in Ireland was historically divided into North and South.

I found out from my recently adult children doing driving lessons that cars have an internal arrow to show which side the petrol tank is on, very helpful when driving a hired car. It can be an arrow or the nozzle itself near to the petrol pump gauge.

booksnbaking · Yesterday 12:20

Redheadedstepchild · 21/09/2026 15:52

There's a nightclub near me called, "Closer." The C fell off the sign, but nobody fixed it for years. It started to be known quite affectionately as "Loser's" or the, "The Loser Bar."

The sign is fixed now. Everybody still calls it "Loser's."

In DH's small home town in Ireland, there's a pub called the Canal Turn.

I won't bother explaining the rest 😆

Sparrowlass · Yesterday 12:30

TessTickle0 · Yesterday 10:54

This is me.
It's dripping down my chin,sometimes slops onto my top..
No one else in my family.have this problem.
I think it's because I wet.the brush first(this is how I was shown by my.dad,i always rinse..kinda have too)
I also use an electric brush but move it.like I would a Manuel which i think creates more froth and spit

Wink

I always swallow the 'froth'. I realise you're not meant to, but I am nearly 45 and not dead yet.

What obvious adult discoveries made you feel a bit of a plonker?
booksnbaking · Yesterday 12:36

dizzydizzydizzy · Yesterday 11:37

lol! Reminds me of a former friend who was a personal trainer and used to say ‘skelington’ (for skeleton) even in her 50s. I didn’t have the heart to correct her, although I was waiting for her to tell me one that that she had realized her mistake but she didn’t. She is in her 60s now and almost certainly still says it like a 5yo! 🤣

My favourite use of "skellington" is Cream, .

- YouTube

Enjoy the videos and music that you love, upload original content and share it all with friends, family and the world on YouTube.

https://www.youtube.com/watch?v=sYIg61FTi5s

GarlicSomething · Yesterday 12:39

Viviennemary · 21/09/2026 22:41

I didn't know toasters had little drawers you were meant to take out and clean.

Every couple of months, we have a Mumsnetter with a 'broken' washing machine - who never knew there's a filter you're supposed to clean out.

guineaguineaguineapig · Yesterday 12:48

I always thought that the manger that Baby Jesus slept in meant the shed they kept the animals in and not an animal feeding trough, which now seems painfully obvious!