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The feminine version of cock block; i.e. a girl who stands in the way of another girl who wants to talk to or meet a guy. Can be used as a noun or verb.
Who is that beaver dam?
She totally beaver dammed me!
by Jennifer December 25, 2004
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When one female interferes with another female's opportunity to have sex.
"I was talking to that cute guy over there when Merissa came up and built a beaver dam!"
"That bitch beaver dammed me!"
by DRoland September 11, 2013
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Leslie tried to slide her five bucks into the stripper's g-string, but Cornelius leaned in with a twenty, creating the perfect beaverdam.
by rubberchickenboy September 14, 2013
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A threesome consisting of one man between two women.

The male equivalent of a finger trap
Last night I was Beaver-Dammed by Kayla and Stacy: it was amazing.
by easygoinperson January 05, 2017
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aka tampon, maxipad 1. anything used to stop menstral flow, and or the COCK
man i stuck my hands down her pants, but when i felt that beaverdam i knew i wasn't gettin' laid.
by prickster January 18, 2007
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