https://www.reddit.com/r/GenX/comments/19anw8d/what_gen_z_slang_do_you_use_to_piss_off_the_kids/
I made a post on r/ask about 'old timey' sayings, and several people mentioned they do the opposite and use Gen Z slang to irritate their kids or the youngins at work.
With a 16 year old son, I try and use his slang everyday just for my own amusement, and it drives him crazy - especially when I say things like "no cap" or "take the L" in public.
I legit have a spreadsheet I keep to them in rotation, and my Gen Z co-workers help me update it.