Writing about a character, place or thing that has been done on a spur of the moment of a fandom or orginal peice. Usually is to short for a short story consisting of only one chapter.
1. A fanfiction term, which means the fic is one chapter long.
2. A one-hit, which basically means that something kills you in one attack in video games.
3. A game by Eliza Velasquez about a kid named Niko who attempts to screw a lightbulb into a tower and save the world.
1. One-shot fanfics are okay, at best.
2. GOD-FUCKING-DAMMIT FUCK THIS BOSS, HE'S GOT A ONE-SHOT ATTACK
3. You only have one shot, Niko.