A cute way to express displeasure, or sympathetic feelings.

A shortened version of boo urns.
Person 1: "I don't want to go to work today"
Person 2: "Boo, work!"

Person 1: "My sister's kitten is sick"
Person 2: "Boo, sick kitty!"
by Naughtybat August 10, 2006
Get the Boo mug.
what people say on bebo which really doesnt scare anyone.
1st person: BOO!
2nd person: Ahh u scared me *coughcough*

by Yazmin1010 April 10, 2008
Get the Boo mug.
A name for someone who is always there for you, and who unconditionally loves you.

Usually used for a boyfriend/girlfriend, but is also used for someone you love and is significant in your life.
by MakeYouSmile May 29, 2010
Get the Boo mug.
The most amazin thing to ever walk this earth, you see her and your jaw is instantly broke cause it hits the floor so damn hard!! She's my everythin and wooahhh I aint never gonna let her go :)
Boo you are so fit :)
by Roo July 20, 2004
Get the Boo mug.
A term of endearment African Americans use when referring to each other. It is derived from the word jigaboo and used mostly by black females when speaking to black males.
Black chick talking to either her:

1.) Fatherless son: "Ay, boo. Time for bed.

2.) Boyfriend: "Ay, boo. When do'ya get outta prison?"

3.) Girlfriends: "It's nice to be chillin' with my boos."
by Tim Jerome March 16, 2008
Get the Boo mug.
Cutie-pie, boyfriend, girlfriend

Invented by Mandy and Menno.
Nelly & Kelly later used it in their crap-ass song.
Hey boo, I luves yoo
by Hank April 5, 2003
Get the Boo mug.
Bitch On Occation;person of the opposite sex with whom you associate with and from time to time, do things as a couple.
"My Boo and I are going out to dinner tonight."
by Piggyadig March 17, 2008
Get the Boo mug.