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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!"
by Jack Union May 02, 2013
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Exclamation: Used as an oral exclamation mark but in a purely conversational context. Its function is not as heightened as the afore mentioned symbol so its impact is designed to simply reinforce ones point or statement. Generally found in light hearted, but not overtly humorous, situations.
Dinner's ready.... Boom.

Just quit my job... Boom.
by M. A. Larkin March 27, 2009
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Adjective:~ Tasty; Good; Fantastic; Great, etc.

Colloquial, primarily, to the south of the UK. Used in adjective form, typically before an object. Pronounced speedily, with a blunt emphasis to the middle, it's "oo" become almost a "u" sound. Different from typical pronunciations of "Boom". This is otherwise used in its longer form, "Boom-ting!" - Used to describe a sexy person, item or article of clothing.

Phonetic: "b-u-m" (really.)
"This is some boom food!"

G :"What did you think of the new single?"
P: "Yeah, I liked it. The video was ace, the song is boom."

"YO she is boomting!"
via giphy
by Jessticlez June 02, 2018
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Hallucinogenic mushrooms, used due to its rhyming with shrooms
Did you eat those booms?

I am so fucking peaking.


Purple Monkey Dishwasher.
by seleta July 29, 2004
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A word used to express satisfaction. or after something that has happened (generally after a good thing). Also if something is done right multiple people will say boom. If Boom is said then sometimes people may copy and say it after.

Can be a random outburst.
And the winner is...SAM!

Sam: "BOOM!"

Luke: "BOOM!"
by seaman27 March 29, 2011
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A drinking game created at the University of Dayton. A combination of Beer Pong and Speed Quarters, where solo cups are filled a third of the way with beer and put on a circular formation. Two players start with an empty solo cup and a ping pong ball and try to bounce their ping pong ball into their cup. If they bounce the ball into the cup on their first try, they can pass the cup and ball to anyone else at the table. If they bounce the ball after their first attempt, they pass it to their right. If you bounce the ball into your cup and the person to your right has a cup already, you hit their cup off the table, yell loudly "BOOM!", and that person must drink a beer from the formation in the middle. The last person to get "boomed" has to drink a full beer.
Brah 1: Hey brah, want to play some boom?
Brah 2: Yeah brah, but we need to get some more Beast first.
Brah 3: Alright, let's head to the Deli.
by Dr. Dan Curran April 16, 2009
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