1 definition by Colleen E.

(noun)the female equivalent of a Cock-Block; a person who interferes with a woman's chance of getting laid, lucky, or boned; generally the "ugly friend" or "previously rejected."
(verb) to block a female from getting sex.
also Clam-Jammy (adj) describing a person with nookie blocking qualities, who may pose a threat to other men-seeking women.
"Jane, you are a bitter Clam-Jam! That guy was incredibly hot, and now he's gone!"
"That Clam-Jam may be five-foot-ten, but I have the Kama Sutra memorized and he'll never know."
"I am going to Clam-Jam Samantha, because that nasty wench spilled my drink and flirted with my boyfriend."
"There is a very Clam-Jammy cougar leaning at the bar, and I'd like to cut off her stilettos with a nail file."
by Colleen E. December 30, 2008
Get the Clam-Jam mug.