Headshot has three meanings as far as I know.
(1)A projectile that hits the head directly, or in vieo games, a shot that directly hits the head.
(2)A photograph that displays only the neck above. Like the ones placed in a passport or drivers license.
(3)The scene of a girl performing oral sex on another person, also known as giving head.
-(1)That stupid camper
is out there camping our base and getting cheap headshots.
-(2)Please send your resume, along with a headshot, and we will inform you if you are accepted.
-(3)So my girlfriend walks in on me and Jessica and sees the headshot.