boo

1. a jeer used by the audience at a performace, game, etc, to show disapproval

2. to utter the jeer mentioned above

3. marijuana

4. a supposedly frightening exclamation such as a ghost might say

When he failed to get a home run, the audience booed him.

by Light Joker May 28, 2006

boo

affectionate name for your girlfriend/boyfriend

used in that old Usher song, My Boo

'you will always be my boo'

i love my boo, he's da sweetest ^___^

by heavily/endowed. January 16, 2008

boo

An exclamation yelled at the top of one's lungs while running through the house, arms flailing, air-drying your wet, naked body.

Natdrea, "Are you almost done in the shower, Phil?"
Running through the house naked, Phil, "Booooooooooooooooooooooo oooooooooooooooooooooooo ooooooooooooooooooooo ooooooooooooooooooooooooooooooooooo oooooooooooooooo ooooooooooooooooooo oooooooooo!!!!!!!!! !!!!!!!"
Natdrea, "Sounds like the shower is free"

by Natdrea August 15, 2007

boo boo the fool

something your black mom isn't.

mom: i don't know who you think i am, but i'm not one of your little friends or boo boo the fool.

by peytonbitchezzz July 17, 2016

Boo

A Boo is a small, fluffy round pink or white cloud-like creature. They are special unique things. They are usually quite almighty creatures and hold many powers. Special Boos have tiny wings and halos, representing and guarding the other not-so-special Boos. One thing about Boos, is they absolutely love Bears.

Boo: I love you, Bear
Bear: I love you, Boo.

by Holleh December 28, 2005

Boo

Never ever gonna get butt love. Not even if there's a fire.

You: Hey how bout some bf later?

Me: booooo

Never gonna have it.

by Beefy one September 28, 2013

boo

Boyfriend of girlfriend

Sup boo, wanna bounce to mah cribk so I could get sum hardcore

by Brittany April 21, 2004