fuck off Share definition Flag used in a sentence when someone is being bothered by something or someone and is starting to get really pissed and about to do something really violent or explode. Dude 1 : FUCK OFF! Dude 2 : dude just calm down i'll stop! fuck off by Ashley06 May 25, 2006 0 0 Get merch Get the fuck off mug. Buy Now — $32.95 See more merch