Carpet Muncher; a girl or group of girls that are totally obsessed with one another, almost to the point of being lesbianic.
Can also be used as a verb when referring to actions that are being done with other girls or "CMs".
"Happy birthday lover! Here's that 3 carat diamond floating necklace you wanted...Only the best for my CM!"
"Yeah the CMs aren't coming out tonight...they're probably running around their apartment doing nude sit ups or discussing their sex lives..."
On an away message: "you fine, but I ain't gon' sweat ya': CM'n with my ladies ;-)"