Flip1  —v. (-pp-) 1 flick or toss (a coin, pellet, etc.) So that it spins in the air. 2 turn (a small object) over; flick. 3 slang = flip one's lid. —n. 1 act of flipping. 2 colloq. Short trip. —adj. Colloq. Glib; flippant.  flip one's lid slang lose self-control; go mad. Flip through = flick through. [probably from *fillip]