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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
 
43.
boo
Slang terminology for marijuana
I got high off that boo last night!!!
by Shont3 May 18, 2010
 
44.
Boo
a term for someone or something that is lame.
not good. Something you disagree with.
A word used when you don't like an action that is occurring. such as the movie hook's "bad form"
1. you can't come to the party? Boo!
2. you told me you were sick, your performance was Boo

"Hey you got a nice ass can i have it?"
"Boo!!! hell no!"
by M!ZZ. July 03, 2009
 
45.
boo
The act of moving your bowels.

Take a dump.
Pull over, I gotta boo.

My stomach hurts, I gotta boo.
by chillifromphilli June 04, 2009
 
46.
a word you yell at someone who keeps staring at you.
Boo!!What are you looking ugly.
by Drucilla Coleman June 20, 2007
 
47.
boo
A word that pisses me off very much. These days is an african-american term of affection like 'shorty'.
"Even when I'm with my boo, all I think about is you" Nelly ft Kelly Rowland - Dilemma.
by Caz November 06, 2004
 
48.
boo
term used to signify something you don't approve of. origin comes from booing people on stage.
A girl walks by dressed horrifically.

Respones: "look at that girl, now that's a boo"
by jasev May 06, 2004
 
49.
boo
marijuana, weed, dope
Boo is a term believed to have originated, or at least to have been popularized by, African-American jazz and pop musicians during World War II.
We smoked some boo. Song lyric from the 50's: "I sumokum booleyeaa, I smokum boo."
by Gunnter March 16, 2008