What deputy U.S. Marshal's call the combination of hand-cuffs, waist chain and leg irons. Thus the three-piece suit.

When a man puts his cock, and both balls in a girl's mouth all at once.

When you'd like to see a girl naked, just in her hat and two flip flops making up the three pieces

noun, collective name for the three distinct components of the male genitalia based on the furniture industry practise of selling 'three-piece suites'