pubic hair intricately shaved to resemble upper lip facial hair. Located above the labia opening or the penis, a muffstache can be grown on either men or women.
"Larry, your mustache is growing in thick and luscious! Does the carpet match the drapes?"

"Thank you Peggy! Yup, the muffstache is taking on a bushy fu manchu at the moment."
by antsypants14 July 18, 2014
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When your girl shaves her pussy hair into the shape of a handlebar mustache so that when you eat her out you feel like more of a man.
I was eating out Barbara the other day, and her Handlebar Muffstache was so good that it made my dick twice as hard because I felt like more of a man.
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The residue left on one's upper lip after orally pleasuring a milf.
Man! I made Hector's mom so wet, after I was done I had a milf muffstache
by Howie Feltersnatch March 4, 2005
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When a clean shaven man performs oral sex on a woman who hasn't shaved her bush. This usually causes a tickling sensation on the man's face.
Guy 1: Uhhgg Margaret gave me the grossest muffstache ride last night!

Guy 2: That's disgusting dude....
by DC Boyz January 18, 2012
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A sexual manuever where the man squeezes his load on the upper lip of another man (thus creating a stache of muff), usually in the hot months of summer.
Last night I gave colin a drippy muffstache
by Con-are-tist April 16, 2006
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When a woman's pubic hair resembles that of Hitler's moustache.
I accidentally gave myself a Hitler Muffstache when the razor slipped.
by Jay5273 February 27, 2011
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After eating out a woman's vagina the eater has some of her pubes stuck to their upper lip.
Linda Evans: "Ohh baby that felt sooo good!"

Tony Danza: "You're welcome."

Linda Evans: "Looks like you got yourself a muffstache though."
by Brick Riggid January 8, 2010
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