1. An exclamation, usually to denote joy

2. A collection of really big weapons.

3. The sound a trampoline makes.
1. I just killed a man and successfully escaped the cops! Badaboomba!

2. No sir, I did not use any weapons in this badaboomba to murder anyone ever (at all).

3. The police officer heard a suspicious badaboomba sound; the corpse had dropped onto the trampoline.
by CrazyDumbledore March 28, 2014
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