derived from the word bookie, which is a pet name for a lover. such as,Baby,pumpkin,babe..
"But you will always be my boo"-usher
by whit wack and susie mack August 03, 2011
Super Fine Chick!!!
Friend 1: What's happening pools... damn, i dont give a pack pools... that girls over there is packing BOOS!!!
Friend 2: Shut up Felipe...
by Samduki January 24, 2009
The acronym of the band Born of Osiris.
"hey dude i heard boo was on summer slaughter tour"

"yeah its gunna be sick"
by KaseyKocaine July 30, 2008
what people say on bebo which really doesnt scare anyone.
1st person: BOO!
2nd person: Ahh u scared me *coughcough*

by Yazmin1010 April 09, 2008
Now a days, this term is used towards someone you feel a deep love for. Generally, it is meant to go past the simple meaning of 'boyfriend' or 'girlfriend', and it usually refers to someone who is very special to you and will always have a place in your heart.
"Baby, you'll always be my boo."
by Gonzos-bonfire April 01, 2008
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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