Usually found uttered in NorthEastern schools, chavs will cry this when another does something the aforesaid chav considers unacceptable.
This usually includes doing work, talking to the teacher, or having a basic grasp of personal hygeine (something chavs unfortunately have not evolved to have).
See I wouldn't dare.
Person: Hi, my friends!
Chav: WOULDYA DARE?!
Person: Huh?
Person: I'm gonna hav a shower tonight.
Chav: WOULDYA DARE?!
Person: You apparently wouldn't.
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.