BOOM! 

the sound Luch makes when she levitates then proceeds to hit the volleyball down at 70 mph

*luch hits the ball* BOOM!

BOOM! by Commander RaRa October 5, 2006

boom 

when really cool things happen

Boom..

boom by zmaf September 2, 2012

*BOOM*

Something you write on a chat, where you get mad at your typo or you're getting overexcited about something. The *BOOM* means that you get nuked or shot in the head.

You: "Yeah, that was really a good omvie"
You: "Movei*"
You: "Mvoei*"
You: "OMG!!!"
You: "*BOOM*"
Guy: "You're alright?"
You: "No, I hate when I type wrong"

You: "It's my birthday tomorrow!!"
Guy: "Cool"
You: "I think I'm gonna get a Playstation 3, or maybe an Xbox360, OR even a Wii, AND MAYBE A NEW COMPUTER!!"
You: "*BOOM*"
Guy: "wow..."

*BOOM* by Mattematask December 15, 2009

boom 

exclamation when you are pleased or to show off

Boom. I just won our netball match.

I beat you. Boom.

Boom. I win.

boom by booties69 December 26, 2011

Boom 

When an argument is won, this phrase is shouted to show victory and triumph only once winning the argument.

*Wins argument* "Boom!" *Walks away*

Boom by Bigmanting4 February 17, 2020

boom 

An exclamation used to define / draw attention to an excellent outcome. Can be used without any preamble. Typically accompanied by suitably emphatic hand / arm gestures.

"I just made the most awesome dinner - boom!"
"Check that backflip - boom!"
Walks into room wearing new shirt - points to shirt "boom!"

boom by Jack Union May 2, 2013

Boom 

The sound of an explosion.

Princess Diana: *driving*
Her ex: *bumps*
*BOOM*
News: Poor Princess Diana died with a boom.

Boom by mexican.potato February 20, 2023