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43.
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
 
44.
a word you yell at someone who keeps staring at you.
Boo!!What are you looking ugly.
by Drucilla Coleman June 20, 2007
 
45.
boo
A word used by a girl to slowly choke the independence away from someone she cares about. Usually interpreted as harmless and affectionate, a significant person in your life introduces this word as a caring pet name. This is a disguise for the shackles just attached to your manhood by your girl.
"He's MY boo!"

"Hey boo, what you doin' tonight?
Spending time with me, not your boys?"
by Ozoneparadise February 23, 2007
 
46.
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
 
47.
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
 
48.
Boo
Another way of saying "okay" "good"
Guy1: You want food bro?

Guy2: nah i'm boo.
by Giggin November 17, 2013
 
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