**Girl/Guy whom you do not know or get along with looking at you crazy**
You:boo! Can I help you?
___________________________________________________
**Person looking at you with disapproval**
You: boo! Do you have something to say?lol**
You:boo! Can I help you?
___________________________________________________
**Person looking at you with disapproval**
You: boo! Do you have something to say?lol**
by That what I said! lol June 24, 2011

by Amandrew April 17, 2006

by Shadow February 1, 2005

by Obafemie June 20, 2007

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!
Students: BOO! You Suck!
by stupid May 30, 2004

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.
by Gonzos-bonfire April 1, 2008

the incorrect spelling for the word Beau. most commonly used by people who have heard the word but do not know how to spell it. beau meaning: boyfriend or girlfriend. boo meaning: what a ghost says.
by chitownpaul October 13, 2011
