a person who is always willing to do the act of taking a cum shot or someone who is known for always swallowing.
"Everyone in the bar knew that Amy was the town cum mop."
by Jimmy Dallas April 30, 2006
A cum-mop is a guy's pubic hair.
When we jack each other off, we rub and grind our crotches together - mixing the pubic-hair cum that oozes out of our dicks and down our shafts into our pubes and then we suck it up afterward! We cum-mopped it up!
by USAF Cadet February 2, 2021