590 is a acronymn meaning that some one is tired of living.
Also can mean some one who is just tired at the moment or the day...

Someone who is possessed by clout chasing. The original human is now gone and a demonic entity that feeds on clout is all that is left. An empty shell with no control of their actions, forced to blindly react to situations they think will bring them attention.

Short for sex or fucking. It's the number coded on a Chinese temporary tattoo, and its a good code word for when you don't want certain people to know what you're talking about.