Boob-nap Share definition Flag The act of grabbing someones boob and pulling on it by accident. Not usually intended, but can be. Lily ran up to me yesterday and boob-naped me! She is soo dead! Boob-nap by ManOfCars March 4, 2009 0 0 Get merch Get the Boob-nap mug. Buy Now — $32.95 See more merch