Don’t pretend you didn’t become obsessed with whatever cool new slang was flavour of the month when you were a child
I don’t remember getting any new slang as a kid.

What I remember from the 90/00s: sinch, hella, coolio, jam (going), spaz, poser, chillax, bitchin, burn, noob, booyah, aight, duh, phat, sup, stoked, jiggy, harsh, buzz kill

There’s a shitton more, but that’s what I got off the top of my head

Yes to all except jiggy. I feel like that was just Will Smith trying to make Fetch happen.
Idk, I got like all the jiggy’s before beating gruntilda