1: An absolute slut, a person (usually female) who has copious amounts of sexual relations with men.

2: An item used to masturbate into. (toilet paper, sock, hotel bed sheets, etc.)
Example 1: Dude: " hey bro check out that chick! she is fiiiiiiiine!

Bro: " yea man she's hot but she's fucked like the whole football team, she's a total cumsponge"

Example 2: " Dude: man I was jacking it the other day and I had to use my gym socks as a cumsponge"

Man: "dude that is nasty as fuck! don't tell me that shit dude!
by -fuckfuckgoose September 12, 2009
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An object or person that absorbes cum.
That slut is such a fucking cumsponge.
by Phill McRacken January 13, 2003
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A cumsponge is the sponge you keep on your bedside table in preparation for performing "the spongebob," the sex act where you shoot your cum on a sponge before wringing it out over a girl's head.
"Hey girl, I'm gonna be late for our date cause I'm preparing my cumsponge for later."

"Oh, that bowl of water? Yea, I keep it there so my cumsponge is always ready to go."
"Naw, I can't make it today brah..... I gotta clean out my cumsponge cause I hit my girl with that spongebob last night."
by RyderReacts October 24, 2018
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