Green’s Dictionary of Slang

1. of equipment, up-to-the-minute, ultra-fashionable.

1984		D. Jenkins Life Its Ownself 34: ‘Know what I told the media about Twenty-three? I said, Whoa, assholes, my man’ll be back next season with a Gucci knee, and it’s look out, Super Bowl!’.
2007		S. Low Boys From Baghdad 22: I’m always wary of someone who goes into mind-boggling detail about the specifications of the latest must-have piece of Gucci hardware .

2. (US campus) a general-purpose term implying a positive state, e.g. good, happy, emotionally stable etc., depending on context .

2014		C. Eble UNC-CH Campus Sl. Spring 2014 7: GUCCI — good: X: ‘How’s life, bro?’ Y: ‘Gucci’, Happy: ‘I finally got my favorite dessert, chocolate cake, so I’m Gucci.’ Okay: ‘My girlfriend broke up with me. I’m Gucci, though’.
2016		The Cut (NY Times Mag.) Mar. 🌐 Gucci — Say good-bye to remarking, ‘That’s cool’ and say hello to ‘That’s gucci.’ Urban Dictionary traces ‘gucci’ back to ’08, but it's still a relatively niche term. It means ‘good’ or ‘cool’.
2024		D. Swierczynski California Bear 343: ‘How are we doing, ladies?’ Jeanie asked her youngest guests. ‘I’m Gucci,’ Matilda said.