clambump 

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??"

clambump by StreetBikeTakeover June 22, 2009

clambump 

A term used to describe the act of lesbianism

Mellisa and Sarah were engaged in a hot and steamy clambump.

clambump by Jeff Mills July 7, 2006

clamjumper 

one who has sex with many different women in a short amount of time.

Adam is such a clamjumper, he already boned every girl on the dance team.

clamjumper by Adam Hay January 7, 2009

Clam Bump 

Another term for scissoring.

Hey babe, wanna clam bump?

Clam Bump by King Clam Bump August 30, 2013