A homosexual woman. (slander)
Man: "How did I know my girlfriend would run off with a clam bumper?"
作者 Spud 2004年1月27日
"Gee, I never would've guessed that Rosie O'Donnell was a clam bumper.", he said sarcastically.
作者 Mike Stander 2003年8月01日
One definition of lesbians, (clam meaning vagina) insisting that the two women have sex by rubbing one of their vaginas against the others vagina.
Cindy and Martha love eachother, they are probably clam bumpers.
作者 leanna :) 2006年4月07日
Cassie Balleza from chowchilla that is really RANK. she smells like cottage cheese!!!!! shes a fat stupid bitch and often fucks sara merical, also a clam bumper who smokes oregano and thinks its bud!
Sarah and cassie fuck when they are together
作者 Cockmaster Bob 2004年1月12日