me and your mother were twanting last night!

Twant - someone so full of themselves that they aren't aware they are actually stupid. But they are aware they are bitchy and enjoying being that way for no reason. While it may more frequently apply to women, men can also behave as twants.

Oh, my God, she's such a twant

She's such a twant.

fuck off you twant

Going to the club to get twanted

Going down to the pub getting twanted fuck shit up