Boo 

Word of endearment assigned to a significant other, often used by "ghetto" black people, uncivilized caucasians...preppy white girls.

"Ooo girl he my boo, he my baby daddy doe.."

"Hey lil mammi you wanna be my boo? You lyk3 whit3 ch0c0l4t3?"

"OmGee Branden is totally my boo"

Boo by Futilepassion January 26, 2015

boo 

smething that a ghost says

the ghost said....."boooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo!!!'

boo by neala December 22, 2002

boo 

Sexual companion pet name - a contraction of wordboo-ty/word.

Oh Boo, do that again!

boo by Shadowfoot September 12, 2003

boo 

A close friend of oppsoite sex

boo by Senor September 16, 2003

boo 

a jive word meaning "hoe"

hay "boo" you got my money or
"boo" get out on that corner

boo by wikid193 August 6, 2008

Boo 

A very well known term used mostly in todays African American Urban language, It carries a very similiar meaning of the word Girlfriend.

"I'm takin my boo out somewhere tonight."

Boo by Insane-CloVVn May 5, 2005

Boo 

something you say when someboby is staring at you real hard like its somethin on your face

"boo, nigga shit!"

Boo by Darcie December 8, 2003