Top Definition
1) An abnormal amount of hair in the butt area.

2) Anyone or anything that has the aforesaid abnormal amount of hair in the butt region.
1) " wow did you see anthony's buttstache? it is soooo nasty."

2)" holy macaroni, chris is one giant buttstache."
by S-Trip June 23, 2007
When the hair in your ass crack is so long, it looks like a mustache.
Hey, Nice Buttstache!!!
by Scat-lover April 25, 2004
The collection of hair around and atop the asshole. Forming a moustache of sorts on the butt.
"Damn bro, nice buttstache."
by labia lightnin January 03, 2007
A hairy, unkept bum.
That girl should not be wearing a thong at the beach, she obviously hasn't waxed her buttstache in months.
by sara r. August 08, 2005
Shaving ones entire ass except around the butt hole.
by WopFF May 06, 2015
Similar to a moustache, but instead of being on a mans upper lip a 'butt-stache' is the patch of hair found just above a mans butt crack.
quote "baby, you gotta shave your butt-stache"
by Joe Magnuson April 05, 2007
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 19, 2015

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