A term used to describe the act of lesbianism
Mellisa and Sarah were engaged in a hot and steamy clambump.
by Jeff Mills July 07, 2006
The often confusing bulge on some womens pants, commonly mistaken for a penis bulge.
"Yo Nick, did you see Patty on register 7?"
"Bro, idk if thats a girl or not, did you see that clambump??"
by StreetBikeTakeover June 14, 2009
Another term for scissoring.
Hey babe, wanna clam bump?
by King Clam Bump July 21, 2013

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