Rapidly expanding heat and gas and/or plasma.

Usually caused by chemical or nuclear reactions, but can also have many other causes such as the release of pressurised gas.
Spend a week in baghdad or go to an active quarry for examples.
by waffle October 16, 2003
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An explosion may be defined as a loud noise accompanied by the sudden going-away of things from the places they were before.
by iMacThere4iAm August 9, 2006
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I think I had some bad sushi.I had major explosive last night.
by s August 22, 2005
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The process that generally entails taking large objects and turning them into many, many small objects.
The Mythbusters once made a cement truck disappear in a fiery explosion.
by Zazu_Biggs October 5, 2009
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What you say after giving someone a highfive as if your high five was so epic it bent the laws of reality and exploded with no negative consequence.
Brandon: "ADRIAN"

Adrian: "BRANDON"

*high five*

Brandon/Adrian in unison: "EXPLOSION!"
by nom nom nom llama brains December 1, 2010
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The exposure of something in an explosive manner. A portmanteaus of "explode" and "expose."
by ThomasGFunk August 26, 2008
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When you're are on a call and you hear an explosion in the background from the other line. Similar to, "Conference Call of Duty."
(On the phone with friend.)

Bob: Hey man what's up?
John: Nothing mu- (explosion sounds)
Bob: Whoa man, are you explosioning right now?
by BrickDawg12 July 8, 2012
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