The act of having a mustache that makes the owner look like a child molester.
Whoa dude, you really need to shave that molest-stache!
by ROGGDOGG87 December 11, 2015
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When your face gets dirty and there's a shadow of dirt on your upper lip giving the appearance of a mustache made of dirt:
Obviously Joey hasn't washed his face in days; he's rocking the 'dirt-stache'!
by RedBombshell February 24, 2015
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When a cat has a built in mustache.
This cat is a bu because they have a fine bu stache.
by Weinerdog17 April 12, 2021
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When someone is tickling your ballsack/nutsack with their moustache.
“Man my girl really gave me a stache sack the other day
by Stachesack May 31, 2020
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the art of pranking someone by drawing on the edge of a soda or beer can with a marker and giving it to someone, preferably a new coworker or intern
"Thanks for the soda" *takes a sip*

"HA!, now you have a starter-pack 'stache!"
by Ronald.j chanefeild August 19, 2022
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