Terraria slang meaning a 2 wide hole dug straight down from the surface of the world to hell, usually with a small water pool at the bottom to prevent death on impact.
a combination of the words "hell" and "elevator". it is typically used as the description of an elevator leading from the survace to the underworld and back
"I just rode the Hellevator!"
"Oh so you came from the underworld? how is it down there?"
Hellavator was created from a K-pop band called Stray Kids. Now, this isn't a real word but the word is used as a term in their song. So supposedly, Hellavator is a elevator that takes you to hell.
Person 1: I'm on a hellavator
Person 2: Ah, the hellavator is taking you to hell