Constant correcting by 11 dss

[Magda72]

Don't want to drip feed so just giving some background. Dps exw has said some truly awful things about me to sds' - stuff which Dp has had to set straight with them. As a result the eldest two while not thrilled in my company are thawing out & things are getting there.

The youngest (11) is much more chatty around me, however he is constantly criticising/correcting me about subjective stuff (opinions & the such like) & also objective stuff (historical facts etc.). Now I'm the adult so I can deal with this - he's not rude about it but it is exhausting. A lot of the time he's wrong (about the objective stuff) but when he's right I tell him he is, if he's wrong I politely but firmly stand my ground as I would do with any child.
The real issue it's causing here is that my kids are getting very fed up of the constant stream of corrections directed at their mum. When I tell them to let it go as he's only 11 they rightly point out I would never have let them away with that behaviour.
He's a little like that with everyone but definitely worse with me.
I honestly can't tell if it's just his personality or if there's anything more to it.
He's very indulged by both parents & his siblings for some reason & while Dp does see it because he's never outright rude Dp thinks he's just being cheeky.
He's a great kid but he's been causing me difficulties with my own kids (have posted here before re this) as they think he's getting away with murder. My kids are very nice to him for the record, but they are now getting quite fed up.
Anyone else dealing with this type of thing?
Dps sees his kids mainly in his own space (for one on one time) but they do come visit us as we want everyone to get to know each other.
I'm worried that it's too early for a family meeting & I'm also very mindful of what he may be listening to at home & I don't want to make a big deal out of it & go backwards.
I'm so confused by it as I also don't want my kids thinking he's getting preferential treatment.

That should read 11 yr old!

I was talking to my 16 and 14 year old teens today. They have a brother who's 11 and about to start y7.

They were discussing how they thought that they were at peak twattiness during that school year. (This isn't in response to their brother doing anything annoying ) It's possible that they were winding me up but could it be true?

Have you just told dss that constant corrections are rude and to bite his tongue sometimes? I can't see a teacher taking that kind of shit so there must be a polite way to say shut up smart mouth without being so direct.

Hi eyebrows - aside from making me laugh 😊 you've hit on something! - trying to find a polite way of saying stop being a messer!
See if he were my boys sibling they'd do just that - but no one in his family seems to. Although he's 11 he's really babied & indulged by Dps whole extended family - not sure why.
I don't want to over respond but do need to find some way of saying it's not ok to keep correcting me.
I get the impression he's very indulged by his mum in a way the elder two aren't. He's an extremely bright child & she really pushes this fact on everyone.

This type of thing typically comes from insecurity maybe due to his relative age and place among the family hierarchy.

Maybe try same approach I
Use with my DS when he corrects me erroneously "If you say so" and move on

Could it just be a phase? Agree with PP that it's potentially a very know it all age.

My DSS has always been pretty self confident, but definitely went through a phase of disagreeing with/contradicting everything, and it was really annoying. Mostly we just tried to laugh at him (both DP and I) when it was getting ridiculous, and I don't know if it was that or he just grew out of it, but he's 12 now and reading your post has made me realise he doesn't really do it any more.

or you could turn it into a game of 'trivial pursuits' that everyone can join in?
Your dc could pipe up with questions/assertions of their own to deflect his attention?

Thing is if you wouldn't tolerate the from your own dc then you should not be making an exception for dss.
Your house your rules.

Thanks for the input guys.
Yes I was putting it down to being a stage but it's pretty pronounced & sometimes quite personal.
My eldest who's 21 & at uni said yesterday that he thinks he (Dps ds) could have a touch of ADHD as this and other behaviours are on the ADHD spectrum.

@Magda72
You can't have a 'touch' of ADHD. Has anyone else mentioned this possibility? What are his other symptoms?

It was a turn of phrase - apologies was a rushed post. I know there are different strands of ADHD & that is what I meant.
No - no one has mentioned it but he has a speech impediment which he has been to a ST for for. Dp feels he should still be going but exw disagrees. Dp has mentioned possible dyslexia in the past but again exw will not countenance it.
My son mentioned it as he noticed his constant climbing, the ignoring of instruction & the constant 'being on'.
He's a very good kid & does very well in school but he only sleeps about 8 hours a night & has no concept of fear/danger.
He also bites & kicks his brothers during football matches etc.
I'm not aiming to criticise here - but I see my kids getting fed up with his behaviour & like I said in my OP as I'm not comfortable disciplining him the way I would my own I'm confused as to whether it's just his personality, the general babying he gets or if there's something else going on.