clamshucking Share definition Flag the act of orally pleasing a woman while she sits on the toilet, usually while she is in the act of pooping. I gave my girlfriend the ill clamshucking while she took a dump. clamshucking by clamshucker23 May 1, 2011 0 0 Get merch Get the clamshucking mug. Buy Now — $32.95 See more merch