poop tuba
A loud fart on the toilet that usually results in a highly accelerated poop shooting into the toilet.
Someone's playing the poop tuba in stall number two.
poop tuba
when your eating out an ass, but it smells frightful and looks like it's been stretched out and wrinkled. A poop tuba is generally caused by forgetting to shower. Only fucking retards are known to have poop tubas because everybody showers before sex.
I ate out a girl butthole last night, but she had a real stinky poop tuba. Never gonna fuck her again.