An adjective used to describe something or someone that is unappealing or annoying. It is something or someone that is strongly repulsive or unliked, unfavorable, aggravating, and especially unattractive.
The Boston Red Sox are Boo-Boo as hell
More examples of this are: bad food, fat people, ugly women, Boston Sports teams (Red Sox), people who Harness the Gnarness, people who don't speak english, and most obviously Hippies
by AK all over the place May 23, 2008
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Hey, did you hear what happen to you-know-who?

What happened?

She was putting on her make-up while she was driving and caused an accident.

Is she OK?

Yeah, it was just a boo-boo!
by DAwirePOSTerboy August 31, 2005
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The term for the wash cloth in a hotel room that is used exclusively to wash ones ass.
"Dont use that wash cloth for your face...thats my "boo boo"

by adamcrisis September 20, 2007
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originating from the word "buboe", a common symptom of the Black Death in the mid-1300's, a boo-boo is the contemporary equivalent and will cause a slow and painful death.
Child: Mama! Mama! OWWWWWYYYYYYY! I GOT A BOO BOO MAMA!
Mom: Well, you're gonna die son.
by Rainbowtowski September 1, 2015
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A boo boo is usually assosiated with someone who makes a large mistake, and who then usually gets humiliated by other people. Or you can yourself be called a boo boo, if you constantly make mistakes.
"Hey trevor you just made a large boo boo".

"You are the biggest boo boo ever".
by Dan Houseman April 16, 2008
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that song you just can't remember the name of. And it makes your friends think you are a robot
Guy 1: Hey can you play that song again? it went beep boo boo bop boo boo beep.
Radio Disc Jockey: Nah man you mean the song that goes beep boo boo bop boo boo bop
by Tacoterminator August 12, 2015
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dirty ass weed that gives you a headache when you smoke it. its also very dark green almost brown.
by xfritophilx September 12, 2007
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