I missed some of those terms during that time. Never liked “Rad” unless it was some commie on campus I was going after.
We used “Cool”,”Bitchin” - “American Graffiti”, “skirt”, “cut the cheese”, etc.
As for “Sit on it”, that came from showing your middle finger to someone you didn’t like and say “Rotate on this”.
Sorry for showing my age, dude!