a name for someone who overuses Juggernaut in the First person-shooter, call of duty 4. Juggernaut is the most annoying perk in the game with Martydom right behind it, allowing the player to DOUBLE their health. often annoying players the right to have a basic 1-hit kill or normal kill.
Sniper: I see you
(Gun shot, hit, juggernaut sign, guy survives and runs away)
Sniper: WTF?! JUGGER-NOOB