A promiscuous female/male that is always willing to be the recipient of male ejaculation.
If you're just wanting to get off, my neighbor Leterra is a total Cumster.
by Biggun81 November 25, 2021
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the dumpster that u cum in
person 1: "have u been to the cumster recently??"

person 2: "yeah, i was there earlier today"
by menliker5000 December 29, 2022
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whore, slut, fan of the creampie, prostitute.
oh her, she's a cumster.
by lowbudget September 11, 2004
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A group of people that masturbate daily on group.
Alternatively, we call it a masturbation group
Joe : "David and his friends are cumsters"
by CumMonster06 March 15, 2023
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the fastest swimming spermatozoon; the first bastard to reach the ovum when you least expect it.
We need money to get cumster to college
by Tox April 3, 2004
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