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1.
An assinine marketing strategy used by Fox around 2000-2001 in which they tried to simultaneously hype their shows and coin a new catch phrase.
The commercial gleefully announced that Fox was "da boom" and featured Bender, from Futurama, dancing.
by the letter d January 20, 2008
 
2.
(n)duh-BOOM

really cool, really good, fantastic, great, unbelievable, awsome...
-who's your favorite soccer player?
-Lionel Messi. he's daboom!!
by meggieissweet September 09, 2008