Top Definition
Like a "COCK BLOCK",But when it's done
by a female....
Like when a "BEAVER" (female) builds a "DAM" (block)
MEN=COCK
WOMEN=CLAM
She just told me all of her best friends worst secrets and how "DIRTY AND SLUTTY" she is!!
What a "CLAM DAM" move!!
by Ritch January 28, 2005
When a lady wears jeans on a hot sultry day and she gets sweaty in her knuckle (private/ vagina/ nether) region.
1) Damn girl its 1000 degrees out and your in jeans... you probably have a major clam dam at the moment.
2) Maybe I should wear a skirt to avoid a nasty clam dam.
3) You cant act on Beaver Fever when you have clam dam.
by evolve911 June 25, 2014
The effort or act of preventing a femal from engaging in sexual behavior specificaly with a phalius. To create drama resulting in cebalcy for a lesbian.The female version of cock block. past tense clam damed
Sara: I can't believe Tanyas acting like a douchebagette now my date left.
Anna: Man you got clam damed

Do not clam dam me at this Liilith fest tonight Susan
by sueme17 March 12, 2011
When an acquaintance blocks their female friend from getting with a guy. The equivalent of Cock Block, this can cause a reduction of friendship and a possibility of ruining any more chances with said man.
Chelsea was about to get a throbbing cock inside of her until Taylor came in crying, what a total Clam Dam
by benji2141 April 11, 2012
When a girl is blocked from doing scandalous things to a man. essentially the female version of Cock Blocking
Oh my God, Stephanie! Can't you leave me and Bobby alone and stop Clam Daming me!
by ShotBySuperman August 01, 2010
To interfere with a female who is getting acquainted with, conversing with, or hooking up with a person of sexual attraction

The feminine form of "cock block"
At the Halloween party, Melissa was about to get Kevin's phone number, when Seth clam dammed her by asking him if she found a job yet. He made it even worse when he reminded Melissa that they had to hurry up and catch the last bus home. Feeling awkward, Kevin walked away as soon as he had the chance.
by Chas Picklewater November 06, 2007

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