A verbalization, or onomatopoeia, of a really gigantic explosion.
Saddam was hanging out in Baghdad one day in March when all of a sudden - fwackoom! - half the city was vaporized by an American airstike.
by bjorn_skurj December 31, 2004
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To destroy with a really impressively cool magic attack.
"Look! I'm fwackooming your king!"
by Tom December 29, 2004
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