Headshot Cancer
Used to refer to headshots in first/third person shooters, usually with a sniper rifle.
Player 1: *walking* BOOM *head goes off*
Player 2: lolz, i just gave that guy headshot cancer
Gamer 1: Dude, get the sniper and start causing some headshot cancer!
Player 2: lolz, i just gave that guy headshot cancer
Gamer 1: Dude, get the sniper and start causing some headshot cancer!