One who regularly attends brothels or purchases hookers. A consumer, but so they can cum.
"Check out that guy over there, Krystal, he's a regular here."
"A regular cumsumer, good for business!"
A person who regularly attends brothels or purchases hookers. A consumer of sex, for the purposes of their urge to cum.
"Heya Krystal, check out that guy over there, he's my regular."
"A real cumsumer, good for business!"