Giving a reach-around handjob to an overweight man while spitting (including flem or small amount of vomit) into his anus, before tonguing it. Similar to a Rusty Trombone.
The person had a bad cold before giving a rusty trombone to a hairy fat dude, and then sneezed in his ass. It turned into a Swamp Tuba (or Swampy Tuba).
A tuba section limited event. The act of eating enough food each to make 3 people die of overfooding.
Dude, you ready for Tuba Love?
Yeah I brought 3 boxes of pizza!
An ass that so big, it reminisces a tuba.
Man, that tuba ass makes the worst music
To play the spoon tuba is to fart while being the little spoon.
You're big spoon tonight! Last night you were playing the spoon tuba.
An anal raspberry blown into a large ass. Sound required
Did you see the big girl James took home last night? I hear he is into playing the Buluga Tuba.
when a tuba is launched into outer space
"hey look! its a COSMIC TUBA!"
Noun
Tits similar in shape size and smell to a tuba.
Holy shit, those were the wonkiest tit tubas I’ve ever seen. They even smelled the part.