Booo! 

The sound a crowd makes when upset. To make such a noise is to boo.

Can be told from the noise made when scaring someone (boo!) by its 3(+) O's.

DiggityMan: And that, dear friends, is why we must collect the garbage twice (two times) each week.

Trash Collection Committee: Booo!

Booo! by Diggity Monkeez April 18, 2005

Booo 

A comeback people use when nothing comes to mind after the initial insult to themselves from another person, likely to have more people join in on the "boo" to more down the insulter.

Guy 1: You wanna fight bro?
Guy 2: You dont wanna fight me il knock you into next week...
Guy 1: Booooooo

People watching/friends of Guy 1: Booooooo

Booo by cford_fluffers May 13, 2015

booo 

ghost, person jumps out and shouts booo

when a person get happy slapped round the chin chinolaeveryone else shouts booo. as in shame u smelly poo face chin

booo you just got happy slapped, u poo face chin

booo by MrW February 2, 2005

Booo 

A scarier version of booo (or a cheep word in scrabble)

"Booo" the woman died from a heart attack

Booo by ScrabbleThot.com October 24, 2020

booo ya 

it meane 'hell ya' somthing like that

hell ya see me now i got you

booo ya by shahonney April 30, 2005

FUCKING BOOO

The insult or expletive of last resort when you have used everything else in your exasperation, fury and or despair. First heard by the fans of a hopeless football team who were sick of seeing their side being so useless.

Aberdeen Supporter at game: C'Mon ye useless cunts! ye are shite! Ye're fucking useless...Ye hopeless bastards...BOOO! FUCKING BOOOOO!

Irish Person: This government is fucking useless! Fianna Fáil have marched us all into poverty! Our fucking country has gone to shit under the useless cunts! BOOOOO!! FUCKING FUCKING FUCKING BOOOO!!!!

FUCKING BOOO by ShamboMaximus November 25, 2010

ooo ga booo ga 

ooo ga booo ga is used when you scare somebody or just want to sound stupid it is a fun word ust to say in general

He is comeing 1 2 3( friends) ooo ga booo ga boi (friends) ahhhhhh (friend)

ooo ga booo ga by ooo ga booo ga June 4, 2021