mum: skirt's a bit short honey, you don't want boys getting the wrong idea now do you?  me: piss off you silly bumface
the best insult in the world, can be used against anyone, in any context
"mum: skirt's a bit short honey, you don't want boys getting the wrong idea now do you?  me: piss off you silly bumface" What is the definition of "bumface"?