What do you call these poem things, like 30days have September

[Lardlizard]

April June and November etc

And know any good ones ?

Oh oh to touch and feel a girls vagina and hymen - cranial nerves
Stuck in my head since 1985!

sorry should have been oh oh oh

Oh mine for the planets is "My very early morning jam sandwich usually nauseates people"

It's a bit weird and arcane without the "people" but still just about works

Hey diddle, diddle, the median's the middle, you add then divide for the mean. The mode is the one you see the most, and the range is the difference between.

Then there's the medical student one for the cranial nerves which starts "Ooh Ooh Ooh" and continues in words that indicates how creepy male medical students can be (at least my contemporaries at university).

That's the one Sunny

“A litre of water’s a pint and three-quarters”;

“Two and a quarter pounds of jam weigh about a kilogram”

and ....

“A metre measures three foot three, it’s longer than a yard, you see”

Surprisingly handy for rough conversions

The Girls Can Flirt And Other Queer Things Can Do

Rather dared mneumonic for remembering the minerals in Moh’s scale of hardness. I suspect on geologists ever needed to know this.

RHYTHM helps your two hips move

All King Edward's Horses Can Make Big Fences -dressage arena markings. Then RSVP?

Never eat chips eat scrummy salad and remain young
Necessary

Oh I love that one, I can never remember that

Lucy can't drink milk - Roman numerals
L 50
C 100
D 500
M 1000

Oh I love this one too

A litre of water’s a pint and three-quarters”;

“Two and a quarter pounds of jam weigh about a kilogram”

and ....

“A metre measures three foot three, it’s longer than a yard, you see”

Surprisingly handy for rough conversions
And this one

Another maths one: All Science Teachers Care, for the order of the trigonometry graphs "all, sin, tan, cos".

There was this really nauseating one about going to bed early: we had it on a record of "rhymes to remember", which had many others such as thirty days hath September. The "early" lines were said in a cheerful teenage girl voice, and the "late" lines were in a grumpy teenage boy's voice.

Go to bed early - wake up with joy.
Go to bed late - cross girl or boy.
Go to bed early - ready for play.
Go to bed late - moping all day.
Go to bed early - no pains or ills.
Go to bed late - doctors and pills.
Go to bed early - grow very tall.
Go to bed late - stay very small.

I do not get this at all

1666 London burned like rotten sticks

@Lardlizard Do you mean that you don't see what the "go to bed early" poem was meant to help you remember? It wasn't actually a mnemonic poem, more of a moral message of good reasons for going to bed early; sorry if that's not what you were looking for! I quoted it because it was on a record which had lots of the poems quoted on this thread.

We need a mnemonic for reminding people that it’s not pronounced ‘pneumonic’ - Paxman was guilty of this on University Challenge recently.

Another Roman numerals one, also from the record "rhymes to remember":
X shall stand for playmates ten.
V for five stout stalwart men.
I for one, as I'm alive.
C for hundred, and D for five.*
M for a thousand soldiers true,
and L for fifty, I'll tell you.

*D stands for five hundred.

My favourite is dash in a real rush hurry or exploding arse. I didn't learn it at school

Errol
I wonder if the reactivity series should be stored inplace of keep (Please Keep Charlie's Monkeys And Zebras In Lead Cages Most Securely Guarded), so then it would be potassium, sodium, calcium.....

Wandering oh I see!! Well now I know I like it

It’s also a bit like get up early put a face on have a good day
Get up late look like a tramp have a shit day

Treatment of Diabetic Keto Acidosis - Fucking: Fluids, Urea, Creatinine, Potassium, Insulin, NG tube, Glucose

And

Causes of Pancreatitis: I get smashed: Ideopathic, Gall Stones, Ethanol, Trauma etc etc. I learnt all of them, proudly recited them to a consultant general surgeon on my first ward round as a student, who looked bemused and told me I only needed the first four. Apparently I’m unlikely to ever come across a spider bite inflicted pancreatitis.

Silly old Harry chased a horse through our attic.

Doesn't It Always Run Rather Horribly Over Each Ankle = diarrhoea ! My mum taught me that one

Does It Always Run Really Horribly Over Each Ankle ?