sit Share definition Flag 1. A gaming term used to let another player know he has just been owned, or is inferior. 2. Take a seat (as in step down) Player 1: I'm gonna own you like a noob! player 2: (*Frags player 1*) sit dude. sit by Raz January 16, 2003 0 0 Get merch Get the sit mug. Buy Now — $32.95 See more merch