another word for marijuana.
sublime: and some of them call it boo
by tokenburnout March 15, 2007

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1. a jeer used by the audience at a performace, game, etc, to show disapproval

2. to utter the jeer mentioned above

3. marijuana

4. a supposedly frightening exclamation such as a ghost might say
When he failed to get a home run, the audience booed him.
by Light Joker May 23, 2006

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an interjection that shows lack of interest in what one has too say.
Teacher: Okay kids! Since I'm on period today and forget too take my medications I've scheduled an hours worth of busy-work!
Students: BOO! You Suck!
by stupid May 30, 2004

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1. A fucking retarded name for ones partner.
2. A word used to scare someone.
3. A word commonly hollered at 50 cent, MCR, FOB, Nickelback, and P!ATD concerts.
1. (guy) hey wuzzup mah boo, u checkin it out to feel reel gud
(girl) shut the fuck up dumbass you sound like an idiot

2. (guy 1) BOO!
(guy 2) HOLY FUCKING SHIT YOU SKARED ME REEL GUD DARE
3.
(Announcer) And now, our final act, panic! at the disco!
(crowd) BOOOOOOOOOOOOO! HISSS!
by Shadow Creator December 11, 2007

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An exclamation yelled at the top of one's lungs while running through the house, arms flailing, air-drying your wet, naked body.
Natdrea, "Are you almost done in the shower, Phil?"
Running through the house naked, Phil, "Booooooooooooooooooooooo oooooooooooooooooooooooo ooooooooooooooooooooo ooooooooooooooooooooooooooooooooooo oooooooooooooooo ooooooooooooooooooo oooooooooo!!!!!!!!! !!!!!!!"
Natdrea, "Sounds like the shower is free"
by Natdrea August 12, 2007

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An term that Black people call Caucasian people because they're as white as ghosts.
"Sup boo"

"Shit, look at that boo"
by Bebop32 August 12, 2007

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To ask or beg for excessively. One who craves hand outs.
Stay away from that girl she'll boo you out of your medicine. Every holiday season I try and avoid Jennetta because she'll boo you out of anything she can.
by Craft WV January 15, 2012

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