"Frag", meaning to kill a fellow soldier, started as a short form of this term for a type of grenade
..... Frag may refer to: Fragmentation grenade , in military, a type 
of hand... [DOC] [TLE] Fragging - Topics [PAR] The term fragging is used to describe the deliberate killing or attempted killing ... 
during the Vietnam War, applied only to the use of explosives to kill fellow 
soldiers.