Fragging was a slang term used to describe U.S. military personnel tossing of fragmentation hand grenades (hence the term “fragging”) usually into sleeping areas to murder fellow soldiers. It was usually directed primarily against unit leaders, officers and noncommissioned officers.

What fragging means?

Fragging is the deliberate killing or attempted killing by a soldier of a fellow soldier, usually a superior officer or non-commissioned officer (NCO). ... The term fragging is now often used to encompass any means used to deliberately and directly cause the death of military colleagues.

What does fragging mean in gaming?

Frag, in deathmatch computer games, means to kill someone temporarily, originated from the military term.