look up any word, like queefing:
 
1.
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 MiReAm May 04, 2005
20 11

Words related to Boooooooo

suggs bawbag boring dontlike drinks ewww hatred keith stingy
 
2.
Rank,Raunchy,ect. This can be described as a smell, sight, or image.
Tom:Oh that fart was huge
Dylan: Yeh man, BOOOOOOOOO
by Immy Marathom March 23, 2004
1 16