Top Definition
Making a terrible mistake or decision.
Rick: What the heck were you thinking?
Frank: I know man, I really Fux'd up.
Rick: you know she's no good for you.

Dad: Go grab my hammer boy.
Son: Okay.... * falls off the house*
Dad: How the heck did you manage to break your leg?
Son: I fux'd up dad, I should have walked across the roof instead I ran.
by Johnny Davison February 17, 2010
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