A man who is extraordinaraly good at having sexual intercourse with multiple women in the same evening, often using his wits and intellect to lure them in his bed.
Jon: Did you see how many bitchs Randy pulled outta the club last night? Uncle Jesse: What did you expect he's the clam man.
by Amazon36 August 19, 2008
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Someone who gets fired from their job for no apparent reason.
"Ah man did you hear about Lindsey?"
"No, what happened?"
"Total Clam Man dude, she just left"
"Good riddance, I hate her."
"wow dude uncalled for"
by xxXBosmanXxx April 1, 2019
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A muscular tube leading from the external rectum to the opening at the end of the alimentary canal through which solid waste matter exits and solid mass enters. Typically found on a human male (pending gender identity).

A gay slang term coined by Gay PornStar Pierce Paris.
The "Man Clam" is usually opened by a finger, tounge, strap-on or penis.
by @pierceparisxxx August 6, 2017
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when you're wearing tight pants, and you kneel down for something, and the seam splits your ballsack creating a man clam
The other day at work, Ray picked up a box of paper and had a giant man clam going.
by cornwreck November 8, 2008
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When a man has bunched up pants in the front that resembles a pair of pants in a vaginal crack (aka camel-toe). Similar in apparance to a moose-knuckle, the man clam lacks the "junk" pushed over to one side.
He was sporting a really bad man clam in his chinos.
by tngal April 19, 2011
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Originating from Manhatten Clam Chowder Soup. Man Clam evolved into what was once known as a mangina where a man tucks his shit back and therefore make a man clam.
Robbie does the best silence of the lambs impression with his gnarly ass man clam!
by Tom Roofer June 21, 2010
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