/shot is Internet slang for iliterally being shot by someone. It is most often used jokingly, after saying something stupid, troll-like, or anything else worth being shot over.
I love starting flame wars all over the Internet /shot
Spamming your inbox with countless links is my hobby /shot
I TYPE IN CAPS LOCK JUST TO PISS YOU OFF /SHOT (or) /shot
Needs more desu! /shot