Definition of "frag"

frag

/fɹæɡ/

noun
plural frags
1. (military slang) A fragmentation grenade.
  Quotations
  Police up your extra ammo and frags, don't leave nothing for the dinks.
  1986, Oliver Stone, Platoon, spoken by Sergeant Elias (Willem Dafoe)
2. (video games, slang) A successful kill in a deathmatch game.
  Quotations
  Oh, man. Did you play Online Gaming last night? No, yeah, no? I did. I got so many frags.
  2004 August 16, Michael Chapman; Matthew Chapman, “Strong Bad Email #111: other days”, in Homestar Runner‎, spoken by Homestar Runner (Matthew Chapman)
verb
third-person singular simple present frags, present participle fragging, simple past and past participle fragged
1. (transitive, US military slang) To deliberately kill (one's superior officer) with a fragmentation grenade.
  Quotations
  Cowboy says in a low voice: “Never turn your back on Mother. Never cut him any slack. He fragged Mr. Shortround.”
  1979, Gustav Hasford, The Short-Timers, New York: Bantam Books, published 1980, page 173
2. (transitive, military and video games, slang) To hit with the explosion of a fragmentation grenade.
3. (video games) To kill.
  Quotations
  I have pistol-fragged far superior players coming at me with a shotgun with 100% health.
  1996, Martin Cox, “Stupid frags ...”, in rec.games.computer.doom.playing (Usenet)