When you have anal sex and the women farts during. When the guy pulls out a little poop comes with it and it's very stinky.
by Stinky Muffler October 9, 2016
Get the stinky muffler mug.the residual shit stains in your underwear at the end of the day. Just like skid marks, but more apt to be from a possible shart.
by turriblechuck February 19, 2012
Get the muffler marks mug.A device worn beneath outer garmets to arrest the foul stench coming from ones butt when farting and to reduce the sound from reverberating round
Farts smell and sound much worse when in the shower than sat in the car with a guff muffler (clothes) on
by The Guffers August 14, 2011
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