Clam Clapper Share definition Flag When a woman farts and it has no where else to go but up through the pussy lips. OMG Becky, I just farted and it was a clam clapper. Clam Clapper by Brittaco389 July 13, 2017 0 0 Get merch Get the Clam Clapper mug. Buy Now — $32.95 See more merch