1 definition by Goose and Twiggy

Top Definition
1- a really big stupid muffler that is fitted on cars to make them loud even though they have a four cylinder engine that puts out about 100 hp

2- an at4 heat (rocket launcher) that alot of noobs use online.
whoah! look at that geo metro with that huge boom tube stickin off the ass of it!

i saw SafetyMan coming around the corner so i busted out by boom tube and blasted that sack of shit
by Goose and Twiggy May 25, 2005

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