A buttmunch, dingus, poopy face or otherwise not very nice/irritating person or thing.
1. Gah! Why does my internet have to be such a butt weasel!

2. Dude, stop being a butt weasel and answer your phone!
by The Homiec C June 27, 2008
A guard animal that gays use to prevent being raped. A specially trained ass-weasel that is your back door buddy protecting your anus from intrusion.
When I came too my pants were down and there was blood everywhere,my butt-weasel saved my ass. Frank was well hung,he tangled with a butt-weasel and now he's well hung in a jar. Remember boys take care of your butt-weasel, and your butt-weasel will take care of you.
by knowman March 10, 2008
(1) A word, first coined in InQuest Magazine, used mainly to describe people that have just done something stupid.
(2) A weasel that generally dwells in peoples' asses.
(1) "Man, George is such a buttweasel."
(2) "That's not hemorrhoids, I think you've got buttweasels!"
by KaiserMonkey August 17, 2003
An expensive but very effective means of HIV prevention, like a trunk monkey only better.
Thanks to my butt-weasel I'm not scared of prison shower rooms anymore. The Butt-weasel don't leave home without it. Sure the butt-weasel is expensive but, what's your ass worth?
by benthere March 11, 2008
a sneaky ass bandit; a snaker of other men's girlfriends
"Dude, don't let that buttweasel near your sister"
by Joe Bone March 07, 2005
A jerk of a person with no moral sense.
"Dave is such a buttweasel for cheating on her."
by arizonapam December 11, 2009
A very derogatory name for whom you wish would crawl into Paris Hilton's butt hole and suffocate.
Jake: Dude Jose stole my bike and fucked my sister!

Derrick: Wow, what a jerk!

Jake: not just a jerk, A FUCKING EVIL, DISGUSTING, PIECE OF SHIT BUTT WEASEL!
by Dr. McPenisburgh August 17, 2011

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