A term used in Halo 3 Team Multiplayer matches. When an opponent has no shields and is on the verge of death. All it takes is one more shot to finish him/her off.
1:
1st Guy: Over at sniper tower, he's oneshot.
2nd Guy: Got em.
1st Guy: Niiiiice.
2:
1st Guy: WTF dude, why didn't you finish him off!? He was oneshot!!
2nd Guy: I didn't see him you f*cking *sshole!
By Fredi
Oneshot
(Used commonly in RPGthreads) To create a straightforward plot or scene involving only one character which can get other characters involved in the future.
(Personal messaging)
1st Person: I've just created a oneshot about a zombiebreak in at the restaurant.
2nd Person: Cool, can I continue that idea in another thread?
OneShot is a top down Puzzle/Adventure game developed by Little Cat Feet and published by Degica.
It is known for being very meta.
In it you guide Niko, the protagonist, through the world.