cum clot Share definition Flag What you get when you don't piss for a while after sex. Sometimes results in a little bleeding. Damn, I fucked this skanky ho and a few hours later I tried to piss, but I had painful cum clots that hurt like a bastard. cum clot by Steve (from near Denver) January 21, 2006 0 0 Get merch Get the cum clot mug. Buy Now — $32.95 See more merch