fwackoom 

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.

fwackoom by bjorn_skurj December 30, 2003

fwackoom 

To destroy with a really impressively cool magic attack.

"Look! I'm fwackooming your king!"

fwackoom by Tom December 28, 2003