An un-motivated explosion, usually in an action movie or film. The word originated from the director Micheal Bay (Transformers 1 and 2, Pearl Harbor, and The Island) who notoriously blows up a considerable amount of objects in his films that would normally never explode.
When that car crashed into that tree it caused a huge Baysplosion!
by RED47 October 28, 2009
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1.) A technique used in movies to attract men's interest. It contains many explosions and is usually directed by Michael Bay. The T.V. show Robot Chicken is responsible for coining the term Baysplosions.
Go to http://www.youtube.com/watch?v=KRS90V8BQGo

That movie was only good for the baysplosions.
by rawramp February 25, 2009
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A bro fist that ends with each bro making 3 or more explosions with his or her fist.

Named for Michael Bay, who can't seem to make a movie without putting over 9000 explosions in it.
Bro #1: Hey, bro! Happy 4th of July!
Bro #2: We gotta have a special bro fist for this!
Bro #1: Baysplosion Bro Fist, brah!
-They do the Baysplosion Bro Fist-
Bro #2: Yeah, 'Merica!
by Burn2x December 17, 2014
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