In basketball, the player who comes in in late-game situations with a lead to protect. The closer prevents the other team from coming back by sinking clutch shots, drawing fouls, and making big plays on D. See Kobe Bryant
Man I thought for sure the Suns were gonna come back, but then Phil Jackson sent the closer back out and I knew we were done.
One of the enemies in Silent Hill 3. The Closer is a tall creature with ball-like hands, a seizuring and penis-like head, and very tall legs almost pointy. Attacks by using its hands that emit a tongue, or by spinning its hands around crudely.
"I think it has this name because its height beings it a little 'closer' to Heaven than most others."