Clam Jumper

A guy who sleeps with all his female friends...male equivalent of a "homie hopper"

Dude, your such a clam jumper! You've slept with almost every girl we know!

by Alice326 May 19, 2014

Clam jumper

A manwhore. Guy that jumps from clam to clam.

Did you guys hear about Dave? He slept with Amber, Jenny and Jennifer, he's such a clam jumper.

by khigga June 12, 2013

clam jumper

Similar to "cock blocking". When a female prevents another female from making a male connection.

Lisa was about to get some sexy horizontal action until that clam jumper Betty showed up.

by micklette July 4, 2011