When somebody is pissed off, for whatever reason at urban dictionary, they will call it urban fucktionary
Jimmy: Hey man, what's up?
Spike: Don't talk to me Jimmy, I'm pissed off cuz I caught my woman with another man
Jimmy: Well here's something that'll cheer you up, do you know what an Alabama firedragon
Spike: I don't care, is that something you found on urban fucktionary? Get a life, loser