Top definition
a tuba inserted into the rear end of a person by means of entertainment, or punishment.
Dylan's parents were so angry at him, they punished him by use of a butt tuba.

Joey's friends wanted to laugh at him, so they gave him a butt tuba.
by Joe Dylan Pudding June 25, 2009
Get the mug
Get a Butt Tuba mug for your bunkmate Abdul.