like attracts like

I know that like attracts like, but you should try associating with people with some more diverse perspectives on life.

antsy

muddy the waters

His suggestions just muddied the waters further, rather than helping the situation.

fishy

There’s something fishy going on.

take hands and feets out

............

nuisance

I've forgotten my umbrella - what a nuisance!
[ + -ing verb ] It's such a nuisance having to rewrite those letters.

make a fuss/ stop the fuss

I don't see what the fuss is about - he seems like a fairly ordinary-

two-time

oddball

She has made a successful career out of her oddball humour

sentimental

He wasn’t the sort of person who kept things for sentimental reasons.

in a nutshell

be in a different league

Our last hotel was good but this was in a different league.

marry into

the axe you trust stabs you in the back

what's with the smirk ?

To be wet behind the ears

Don't rely on his advice about girlfriends; he's still wet behind the ears