The opposite of a thigh gap. A blockage of fat between the legs.
That bitch is so fat, her thigh dam blocks the sun.
by Benny Beemin' full of Semen October 12, 2014
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As you're about to ejaculate, the girl blocks off your urethra with her tits, effictively blocking the evacuation of sperm and causing intense pain.

*Created by Reid W.
Connor: Hey man, why are you mad?

Kasey: I pissed off Sally and she Titty Dammed me.
by Swag Mastur November 20, 2014
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Dancing to every song known to man like you are Jean Claude Van Damme in the drunk bar scene from Kickboxer.
Did you see Ed, Matt and Jason at the party last night? Those guys were Van Damming it up to every song!
by MacheteManF13 February 11, 2021
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