Verb
(intransitive) To strive to one's utmost; to give one's all in an endeavour, at sport, etc.
Synonym: go strong
(intransitive, stative, informal) To be excellent.
Synonym: slap
Did you hear this band's new album? Yeah, it went hard af!
This pic goes hard. Feel free to screenshot (Internet meme)
Used other than figuratively or idiomatically: see go, hard.
I wanted to eat some bread but it had gone hard.
I studied acting for five years. I quit college at that point. You know, I go hard. When I know I'm supposed to go in a direction, I'm fully committed and I go all the way. Everything falls to the side and I'm all in. So I completely dove into acting even though I was almost 30. Sonja Sohn
The villany you teach me I will execute, and it shall go hard but I will better the instruction. William Shakespeare