It's a short hand way and abreviation to say "Also Known As"

A cultural and aesthetic mind-state that prioritizes making money, even as an “underground” or “radical” creator. The work isn’t made for money, but it’s the money that matters the most.

Abbreviation of 'also known as'. Utilized when using an alternate name for someone/thing.

Is a thing most Dj´s and rapper use these days it means ( also known as )

How to introduce a euphemism. Saying something while meaning something else.
Used in a sarcastic manner