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Verb. Intransitive. To masturbate, exclusively used when referring to a female. Some say it is actually a lesbian sex act, but they are wrong. That's called scissor sisters.
Mike : Did you hang out with Fugu yesterday?
Matt : Nah, man. I couldn't get her out of the fucking house. She was slamming the clam for like five hours!
Mike : Damn, man, she's gotta be chafed after that.
by DasProfezzional May 26, 2005
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After a night of drinking, Joe and Betsy decided to slam the ham against the clam.
by Wonder Llama September 28, 2017
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