A homosexual woman. (slander)
Man: "How did I know my girlfriend would run off with a clam bumper?"
por Spud 27 de Janeiro de 2004
lesbian
"Gee, I never would've guessed that Rosie O'Donnell was a clam bumper.", he said sarcastically.
por Mike Stander 01 de Agosto de 2003
Lesbian
"you two clam bumpers wanna be alone?"
por like2watch 01 de Agosto de 2003
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.
por leanna :) 07 de Abril de 2006
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
por Cockmaster Bob 12 de Janeiro de 2004

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