Top Definition
One (or more) males in a group who always think they are funny, but instead embarrass their friends - especially around women.
Tom: "Ugh, I was talking to these two hot chicks, and then Doug comes up outta nowhere and starts dry humping me, thinking he was being funny"

Dave: "What a butt clown...I've got his car keys, let's just take off and leave him here"
作者 frostboy74 2009年9月16日
4 more definitions
someone who likes to check out the anus of homeless people in central park, also used to desrcibe a koala in the outback. if you have only one left nut and two right ones you are probably a victim of child abuse and see a psycologist. thats all for now if you want to know more you are a loser and should get a life before the devil steels your soul and you get blown up by a suicide bombing.
damn that guy who looked in that hobo's asshole is a BUTTCLOWN
damn that koala that i saw on animal planet is a buttclown
damn that guy who flashed us with 3 balls should see a doctor
作者 stoneman123 2006年7月17日
A person who dresses up their butt like a clown, and acts like a fool. The person paints his butt like a clown, and puts a big red nose in the hole.
He's a buttclown man.
作者 Davis Z. 2004年4月06日
A Buttclown is a person known as a fool. They speak nothing but nonsense and never say anything relevant. Most individuals that experience Psychosis are a buttclown.
"Psychosis was being a real buttclown on that private tracker."
作者 JellyRolls 2015年1月25日
A Buttclown is a person known as a fool. They speak nothing but nonsense and never say anything relevant. Most individuals that experience Psychosis are a buttclown.
"Psychosis was being a real buttclown on that private tracker."
作者 JellyRolls 2015年1月25日

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