What is Clam Bumper?
1.
A homosexual woman. (slander)
Man: "How did I know my girlfriend would run off with a clam bumper?"
See
2.
lesbian
"Gee, I never would've guessed that Rosie O'Donnell was a clam bumper.", he said sarcastically.
3.
Lesbian
"you two clam bumpers wanna be alone?"
4.
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