Top Definition
A dirty moustache, or the hair in your ass.
"When I poop, a lot is left in my fartstache".

"Check out John's fartstache! Man, he really should get rid of it."
by Sele92 November 02, 2013

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×