1. Boyfriend or girlfriend
2. Word used to scare people
1. Can you handle me? If you can't you ain't gonna be my boo.

2. Guy: BOO!
Guy 2: Holy sh*t!
by Antony June 8, 2004
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1. An unattractive face, or anything that is unappealing
Buffie The Body from Tony Yayo's "So Seductive" video has a bangin' body but that face is boo boo.
by Antoine July 27, 2005
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Girlfriend / boyfriend. Some people use it as I love you. Or the word ghosts use to scare people
Boo! Frank said. I love you boo. Hi boo
by MineKing2435 August 28, 2016
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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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person: boo
person 2: AAAAAAAAAAAAHHHHHHHHHHHHHHHHHHHHH
by Mthu February 15, 2020
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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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