Fuckboy Share definition Flag When you reach the ultimate level of fuckasery senior year. And you only use words like lit, lavis, and let's not forget... Good talk! Bro Restrepo is such a fuckboy... He slayed sophomores all weekend. Fuckboy by Mary Newkirk September 22, 2016 0 0 Get merch Get the Fuckboy mug. Buy Now — $32.95 See more merch