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The female version of the "bag tag" when one person (usually female) hits another in the vagina.
"hey girl! what's up?"
(vagina hit)
"Clam Slam!!!"
by sircuzfreek June 2, 2009
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The female version of being cock-blocked. Another party ruins, prevents or impedes the probability of getting laid through whining, forcing to leave, laying the guilt trip and/or expecting one to "be a good friend" and sleep alone.
Almost everyone was hooking up in Mexico, until Trisha pulled the clam slam on me when she wasn't getting any play herself.
by PaxyD December 15, 2008
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The female equivalent of a sausagefest.

When a bunch of girls get together to hang out.
I am gonna be busy this weekend, clam slam with the girls from back home.

I can't make it on Saturday, couple of us girls getting together for a clam slam
by amethyst1564 October 8, 2016
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What two lesbians do: Slam their clams together. Duh?!?
Isa and Jackie are all scissor legged upstairs doing a clam slam
by LiveinSocal April 23, 2008
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Female version of a gangbang. (When 1 guy has sex with 3+ girls at the same time)
“Did you hear about last night? Christian passed out at a sorority party and they clam slammed him”
by Imonsmoko April 15, 2019
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Bro, I was playing Halo and I got completely wrecked by a chick. She clam slammed my dead body so hard.
by Dilwog August 10, 2016
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