n. derogatory insult used to describe someone who is misbehaving, being a twat or showing poor form on a night out. versatile in its use but always negative.
Friend: Yo bro i’m gonna see my girlfriend this evening instead i think
Me: Oi don’t be a wassiole, saturdays are for the boys!
Friend: Fine, to be honest that would have been wassy behaviour, what we drinking tonight then boys?
Drilla 1: Yo Shanice! Your mouth is moving too much! yapper yapper yapper!
Drilla 2: Yo Shanice! Thats a peng tingover there! Battygrease! rehtehtehteh
Drilla 1: Shaaatupp! Let me come smell that WASSYHOLE Shanice! Jiggly Ting!