a fuckboy Share definition Flag Basically a boy who fucks girls around; gives mixed signals, tell you they want you then drop you and pretend you mean nothing to them. Sarah: God luke Is such a fuckboyLinda: why what's he done nowSarah: Same as usual mixed messages a fuckboy by Bbnutnut August 13, 2015 0 0 Get merch Get the a fuckboy mug. Buy Now — $32.95 See more merch