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 26, 2005
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the Boom Tube is, The act of a man (usually middle eastern) strapping a grenade to his ball sack with the intention of having rough enough sex to have it go off. This is a terrorist tactic...
Hey man, did you here how Achamedia died?
Boom Tube kill him?
Yeah...
.....Nice
by ASDFAFERADSF June 3, 2011
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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- a rocket launcher or grenade launcher.
whoah! look at that geo metro with that huge boom tube stickin off the ass of it!

i saw Safetman coming around the corner so i busted out by boom tube and blasted that sack of shit
by FurBurger69 May 26, 2005
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Otherwise known as a Whispering Eye, this cylindrical pleasure hole is believed to be the favored stomping grounds of the wretched Purple Headed Yogurt Slinger.
Come on baby! Let me tickle your Boom Tube.

Tell me bitty, when's the last time you got pounded? Right in the Boom Tube?
by Dewburn April 1, 2011
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