What is Muffslice?
An awesome insult used to describe an idiot/prick/bawbag/arsehole, basically anybody you don't like. Can be used in any situation.
Don't be such a muffslice!
What a muffslice he is!
Your mum is a muffslice!
See prick, wanker, idiot, bawbag, tosser, arsehole