Top Definition
1. The act of effect of something happening in a booming fashion.

2. Something very exciting.

3. A nonsense word to be used in Scrabble and Pick Two.
Man, that was the most boomly I've ever heard you speak, Sir Cumsalot!
#boom #bam #pow #bang #booming
by CuddlefishCumsalot August 14, 2010
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