Slappy Chinner Share definition Flag When a you are getting oral from someone and start fucking them in the mouth so hard, the balls start hitting their chin. Guy: Man, last night I was out with Melanie and we did the slappy chinner. Slappy Chinner by Lando Pepper July 23, 2014 0 0 Get merch Get the Slappy Chinner mug. Buy Now — $32.95 See more merch