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1.
A device that keeps some vaginas from making a whole bunch of noise when they're driving.
Man, put a cunt muffler on that bitch's snatch. It won't shut up.
by Pollup January 07, 2008
 
2.
a person who loves cars ect ect

also known as bitch wagon or a car that belongs to a bitch
what a cunt muffler that hoe is
by sarahjeanne November 23, 2004