The Brief: Lit is a slang term that describes something very crazy or exciting.

DEEP DIVE
Lit is used to describe something that’s crazy, wild, exciting, or cool. The word is commonly used in rap songs like Psycho by Post Malone ft. Ty Dolla $ign.
That party was lit!
i can’t wait to move out to sf, gonna be broke but it’s gonna be #lit
— sun (@xeyarennus) July 15, 2018
It’s been #lit partyin with yall so far this summer. What cities should we go to next? 👇🏼👇🏼👇🏼 pic.twitter.com/uwPl6HI0Hx
— LOCASH (@LOCASHmusic) July 16, 2018