Top Definition
Just before the male ejaculates he inserts a straw into his penis.
Colin was with his girlfriend, late at night, and she was giving him oral sex and he inserted the straw last minute so she could suck out the jizz! Therefore acting like a Cum Straw, this may feel uncomfortable for some males!
by Adam Miles July 31, 2007
5 Words related to Cum Straw

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