Definitions by Mike Gallagher

crusty clam

When a man shoots his cum on a womans labia majora and the woman leaves it there until it dries. Then the next man who gets in her pants finds her labia majora encrusted in cum.

"I pulled down her pants and found she had a crusty clam, so I licked it off."

crusty clam by Mike Gallagher September 12, 2005