1 definition by Sick Cunt

fuck up

1. Screw something up, completely fail at something
2. Shortened way to say "shut the fuck up"
3. (Australia) Something you say to initiate a fight with some cunt. Basically "stand/get the fuck up".

1. I really fucked up that.
2. Fuck up, Dazza.
3. Fuck up, cunt.

by Sick Cunt December 15, 2007