when you scratch your butt with a finger and then place the same finger under someone's nose to resemble a mustache.
It grossed me out when my buddy gave me a butt stache after scratching his ass.
by Bad Teacher June 15, 2015
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(n) A flesh colored or blond mustache. A favorite style for rednecks
Did you see Johnny's sweet flesh-stache, he's definantly gonna score with his cousin tonight
by HicktownPortland November 19, 2011
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A diddler Stache is a mustache that you grow out when you have to replace your valve covers on your German engineered bMw for the 5th time
mikal went full diddler stache after he noticed his bmw was leaking like a som bish
by Vic Vinegur February 20, 2022
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When a guy is getting a blow job and he misses his mark while cumming and it sprays across her upper lip and a little gets in her eye. She then yells "ARGH! ME' EYE!" while squinting the aforementioned eye closed, while the cum mustache drips down either side of her mouth, resembling a wicked pirate's facial hair.
I was giving my BF a hummer and he wanted to cum on my tits, but he misfired and I ended up with a Pirate 'Stache. My eye still stings and since then I keep getting whiffs of bleach.
by Destiny Unique September 29, 2012
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This is a scruff patch left above the upper lip caused by long term spit swappin'. Usually done as an extra marital affair and in broad daylight. Can happen while standing or while sitting on their duff. It usually takes 1-2 hours to develop and then scab over causing a bit of an eyesore. May also cause twitching.
Wow I could see her Stache burn from a mile away.

Does she always get stache burns on the weekend?

I guess her ball less wonder of a husband has gotten used to the stache burns by now.
by Sass sha J May 14, 2010
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"A play on words made in reference to March Madness. March Madness is the annual college basket ball tournament held every year in March to crown the college basket ball champion. I know you don't watch sports so you can't relate BUT real men know exactly what I'm talking about." ~Kyle (pronounced K-aisle!)
Guy 1: Let's grow mustaches for Mustache March.
Guy 2: It's now March Stacheness, because I made it up.
by StrongManHaze February 22, 2019
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