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86.
Boo
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 09, 2006
21 36
 
15.
Boo
A small spherically shaped ghost that is only visable when your back is turned.
Mario tried to kill the boo, but every time he turned around to hit it, it vanished.
by naveregnide May 22, 2007
56 43
 
16.
boo
A pet name created by those who are entirely devoid of describing their true feelings for their significant other.

In other words? A "loving" term thought up by lazy, inconsiderate imbeciles.
"Oh, like, I SOOOOOO love you, Boo!"
by Magmeezie August 29, 2003
60 48
 
17.
boo
Disapproval.
Guy1. Yo this one time....
Guy2. Boo!!
by hasselhoffman February 26, 2009
251 240
 
18.
Boo
A ghetto term of endearment for your significant other. Possibly for your baby momma.
"Heather is my Boo, now and fo-eva fo-sho"
by Patricia Reyes March 04, 2007
225 214
 
19.
Boo
A term used to scare the frightened.
BOO! OMG you scared the shit out of me!
by Jared or J-RAD! March 23, 2008
42 32
 
20.
Boo
Boo is a hamster who serves as the animal companion of the berserk ranger Minsc from the Baldur's Gate series of computer games. Minsc claims Boo is a miniature giant space hamster.
Minsc will lead with blade and boot! Boo will take care of the details.
by Jason Attard October 22, 2004
139 129
 
21.
boo
Used to convey ones disapproval or disgust of something.
Guy 1: Hey, check out that sweet Honda.

Guy 2: Boo to Hondas and Boo to you.
by Little Dog Monk August 29, 2006
60 52