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8.
A display between two people to show that some act of genious/awesomeness has just happened. This is said verbally between the two persons. They can also clench a fist and knuckle tap each other whilst saying it for extra affect!

It can also be used when two people say the same thing at the same time.
Vixter- "Iv just had an awesome idea!"
Gazmo- "what?"
Vixter- "Lets watch Kenan and Kel"

(Both together) "Boom-Boom"
by GazNVixDicto May 01, 2010
24 10
 
9.
While standing, you hold a person upside down facing your crotch. You then proceed to dry hump that person's face. Meant as a joke or a prank, not in any sexual way.
Edgar: Ruben! BOOMBOOM! BOOM BOOM!

Ruben: Edgar.. not now.
by FunkyBuddah February 05, 2010
21 10
 
10.
Filipino slang for "sex"
"Babe, kailan uli tayo mag-boom boom?" ("Babe, when will we have sex again?")
by pj42106 September 24, 2007
96 87
 
11.
Boom-Booms: a pair of short, tight, bright, and sexy underwear. Can be used to describe both men's and women's particulars.
I was really turned off when I saw that he was wearing boxers, boom-booms are so much more appealing -makes the booty look so much better.

She looked so amazing in her little boom-booms.
by sartorial October 14, 2010
7 1
 
12.
doing the dirty
Man, I'd like to boomboom that girl!
by Tim Frazier July 28, 2003
15 10
 
13.
Shrooms. As in mushrooms that you smoke.
Dude, do you have the boom booms?
by Hayle June 18, 2008
14 11
 
14.
Big poop small poop short poop tall poop.
Jace laid a big boom boom on the floor.
by Jaceman07 March 03, 2008
69 66