A person (male or female) who intentionally or unintentionally stops the progress of one woman getting some pussy from another.
I was about to get some of that fine ass pussy over there until Paul came up and started talking about Star Wars again, he's such a muffler.
by Amanda Likes It That Way November 5, 2008
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(1) Girlfriend / fiancee / wife.

(2) When a woman stuffs her muff in her man's face.
Sarah gave Jeff a muffler, muffling his car talk.
by Sara Lee January 7, 2007
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Thingy you put up the end of on an car so the exaust gas wil sound nice
w00t ! Look at that muffler ! Its so fecking big ! Its almost like teh rocket pipe in Need for speed udnerground
by Michal December 17, 2003
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one who joins in the act of muffling, or the stimulation of the females vagina using ones tonge, also called a carpet muncher
gee sally, what a muffler tom is, i could here you all the way down the hall! (sally glows)
by Anonymous August 23, 2003
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When you place an open can (coke, Dr. Pepper, monster, beer, etc.) in someone’s asshole, stab a hole in the bottom once placed, and shotgun the said substance.
Bro my asshole is still bleeding after Kyle did The Muffler with his monster
by Ni99er_beater69 March 16, 2021
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Breaking wind while performing a blow job
Dammit, I was sucking on a huge new cock last night. Everything was perfect, except I was a little bit drunk, and I broke wind right in the middle of it all. Thank god he was drunk too, and we made a joke and called it mufflered fellatio. We had great sex, but I was pretty embarrassed.
by susan0506 October 9, 2011
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