1
A jackernaut is someone who takes way more damage than normal and still keeps on fighting like a crazy person. They’re like a tank with a attitude and a grenade up their ass.
"You shot me three times and I’m still standing? You’re a jackernaut!", @Gamer4Life
"He got hit by a rocket and just laughed. That’s a jackernaut.", @CallOfDutyNoob
"I’m a jackernaut. I eat grenades for breakfast.", @GrenadeLover99