1. rude slang An angry imperative for someone to leave, leave one alone, or stop what they is doing. If she's going to make snarky comments about my food, then she can just get the fuck out.

2. slang An expression of surprise at what one has just been told. Although the use of "fuck" can be offensive, this usage of the phrase is not intended to be rude. You got the job? Get the fuck out! A: "You know, your crush is coming to the party after all." B: "What? Get the fuck out!"