Performing fellatio on a public official to harpsichord accompaniment while wearing a powdered wig in the hope of receiving a well-paying political appointment in exchange for one's efforts.
Publicus only got that job as Secretary of Agriculture by playing James Madison's Crystal Flute. Based on the speed with with his nomination was confirmed, he must be a flutist of some distinction.
2. The flute that Captain Picard played first in his imagination and then in real life in the episode "The Inner Light" from Star Trek: The Next Generation.
Progectile weapon commonly used by members of various marching bands. The flute is mainly used as a blowgun or a tool to harm members of the low brass section.
Tim: Hey! woodwinds suck brass!!
Lauren: *clobbers Tim with flute*