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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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1.(n.)the female equivalent of a cock block; a person who prevents a woman from scoring

2.(n.)the female equivalent of a boner killer; a person or situation that turns a woman off

3.(v.) an act which prevents a woman from scoring, intentionally or not
1. My roommate is a crazy-ass beaver dam. I can't bring anyone home without her trying to fuck them first.

2. Long nails are a sure-fire beaver dam. No wolverine bullshit in my snatch, thank you.

3. Dude, quit tryin' to beaver dam me! I need to get laid!
by ka-chan February 15, 2012
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Honey, will you please clear the beaver dam before we have sexual intercourse?
by wurd January 29, 2004
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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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