A multiplayer deathmatch in a computer game which involves a massive amount of killing.
Guy: Hey, wanna start a fragfest at 8:00?

Guy2: Hell yeah, Unreal Tournament!
by animatorStrike February 6, 2005
Get the fragfest mug.
Grenades in online gaming, either one iduvidual makes a massive ammount of kills using frags inside one game or kills multiple enemies with a single frag. Or a load of your team and the enemies are just using frags, so everything is exploding all over the place.
Guy1- OMFG, that guy just frag nadded 5 people.

Guy2- Lol, i pwnz

Guy1- Your just lucky you got that fragfest
by Daws09 March 2, 2009
Get the fragfest mug.