During a competition, esp. a speech/debate tournament, when a judge is clearly going to vote in favor of you but doesn't for some bizzarre, unfathomable reason. Usually causes you to lose when you do not deserve it. Judge-fucking is completely unfair and destroys a majority of competitions.
A: Dude, Two Judges gave me first place in that round. But the third judge gave me last place!
B: Damn, that sucks. Did you make it to semi-finals?
A: No!! I got so freaking Judge-fucked!
A: Why are they getting rid of the tournament?
B: They don't like that we win so much so they're getting rid of it.
A: Wow... That's Judge-Fucked to the EXTREME!
A: How was the tournament?
B: It wasn't fair!! Our best competitors got judge-fucked!