Luna

Luna is the name of a cryptocurrency that went from 100$ to near 0$ in a week. Most crypto traders use the moon to describe rising prices and gains. Luna is the moon. But seeing the tragic fall of luna. Luna become synonymous with downfall prices.

"Yo, bro! I'm going all in DOGE.
It's either moon or luna."

"Check out this new coin"
"Idk chief, it has some potentials to become second luna"