50
The one. The one who will always be there for you no matter what the circumstances may be. If you have someone special...call them boo ^_^
"You're everything to me. I love you Boo"
by Tasher March 25, 2008
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51
the nickname for a present girlfriend/boyfriend or ex girlfriend/boyfriend that you really/still care for. somone that you will always remember.
1st example: friend-dude your ex girlfriend is calling you should i hang up? yourself-nahh shes my boo

2nd example- i love her, shes my boo!
by u already knoww July 13, 2010
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52
Slang term for marijuana, aka boo grass
This example will be in the form of a conversation:
"hey man, you got any boo?"
by Jason Bond 86 April 23, 2009
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53
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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54
A ghost enemy in the franchise Super Mario. Some people use it as a name for thier love, when really they're calling thier love a fucking ghost.
-"My boo is so sweet, we kissed during the movie.."

~"How the fuck do you kiss a ghost?"
by Woofenstein October 26, 2014
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55
As in Boo of Monsters Inc.
Sulley: Boo!
Boo: Kitty!
by Monsters Inc Rules! October 30, 2003
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56
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
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