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The female version of teabagging in which the vagina is placed on one's face, usually to establish dominance. Frequently used by female video game players after fragging another player.
DUDE! K1LL3rClam83 just clam slammed me after she stuck me with a grenade!
by Milky Pirate March 04, 2008
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Jessica and Kristine tripped, we ran over to help and jessica was totally ClamSlamming Kristine!
by Ryandawg June 04, 2009
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When one famale is to 'slam' their vagina against another persons forhead.
"First one asleep gets a Clam-Slam from Kayleigh".
by Icemang80 August 18, 2009
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1. (v.) When one female prevents another female from scoring on a professional and/or personal level.

2. (v.) Female equivalent of cock block.

Synonyms: Twat swat; clam dam; clam jam (not to be mistaken for rag).
I was just about to close the deal when she cut in, cut me off and clam slammed me so hard I got whiplash. So...I punched her in the vag.
by foschizzlemanizzle June 06, 2010
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Picking a Female up by her vagina and brutally slamming her into the ground. Also known as a pussy piledriver.
Sam: Dude your friend was pissing me off, so i had to Clam Slam Her
Jake: Its okay man, Should of thrown a kettle at the bitch
by Motherphuck July 07, 2011
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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 08, 2016
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