boom tube

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

2👍 3👎