Galgore
A weird, old name for a killer who would murder so many people, it was like a party. The name came from a demon that was so evil, it made whole tribes vanish like they were never there.
"You’re a Galgore, I swear. You killed my friend and his entire family for no reason."
"My cousin is a Galgore. He killed 30 people just for stealing his video game."
"My mom called me a Galgore for screaming in the car during rush hour."