1. Going into the back room under the pretense of practicing the bassoon. However, the perpetrator proceeds to smoke the devil's lettuce, usually using the bassoon as a bong.

2. A euphemism for smoking pot.
Taylor: What were you doing back there?

Ben: Just practicing the bassoon.

Taylor: Oh. Gotcha ;)
by Mr. Stanturf September 10, 2011
Get the Practicing the Bassoon mug.