Define Boooooooo Meaning

Boooooooo
you suck, you're wrong, definitely not right/correct, more specifically used when Imron says ANYthing in math class...

"The answer is 5x-2...."-Imron
"Boooooooo"-Class
By Rianon
Boooooooo
The noise made by Big J that made Scary Jerry shit his pants.

Holy crap, Big J just scared the shit out of Jerry with that “Boooooooo”!
By Cassey
Boooooooo
Rank,Raunchy,ect. This can be described as a smell, sight, or image.

Tom:Oh that fart was huge
Dylan: Yeh man, BOOOOOOOOO
By Maryjane