What does instrument mean?

What is instrument?

A humorous euphemism one uses to refer to their penis, such as when they are planning to masturbate, they will say they are off to play their favourite instrument.

Definition

More of a juvenile reference, for when one is planning to ejaculate. The concept is more that sex is like playing music, in that it is sweet and pleasing, hence the reference to the penis being referred to as an instrument, that requires playing, in order to be more pleasing.

Other musical terms referencing the penis is: Trumpet, Trombone, Playing one's Flute, Baton, Organ, Whip Whistle, Silent Flute, Skin Flute, Roaring Horn, Piccolo, Fiddle Bow, Meat Flute, Bugle.