boo-boo 

mistake, error, doing something wrong

don't u ever do that boo-boo again, or u'll lose ur job!

boo-boo by Varsha June 8, 2005

Boo-Boo 

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

Boo-Boo by AK all over the place May 23, 2008

boo-boo 

A minor traffic accident.

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!

boo-boo by DAwirePOSTerboy September 20, 2005

boo-boo 

dirty ass weed that gives you a headache when you smoke it. its also very dark green almost brown.

that nigga got some boo-boo

boo-boo by xfritophilx September 25, 2007

boo-boo 

the noise thee clique makes when they are done fornicating

Kali: BOO BOO

Bob: I concur, that was some great fornification

Anna: I thought so too

boo-boo by theeclique November 16, 2003

Boo-Boo 

When you suck at hitting

Ian is hitting Boo-Boo in middle school baseball.

Boo-Boo by Hayden & Lane April 28, 2023

Boo-Boo 

When your averaging less than 100 in middle school baseball

“Ian is hitting Boo-Boo right now, he sucks ass.”

Boo-Boo by Hayden-Lane April 29, 2023