It’s weird - I don’t know if I just wasn’t get out for a while beyond more normal circles, therefore I haven’t been keeping up on what the kids are saying these days, but that seems a bit unlikely. However, in a matter of three days I have heard one person per day refer to someone as a “chach.” It’s not that it’s a new term - just that the use seems frequent and it came from totally unconnected people.

The slang dictionary says that chachi/chach is replacing guido as slang for:

any Italian male, or any male pretending to be Italian, who wears gold chains, puts gel in their hair, and dresses like a fag in a pathetic attempt to impress members of the opposite sex or otherwise overcompensate for their inadequacies.

..so not the nicest term, but the logical origin is Chachi (again with the Happy Days) Arcola, played by 80s dream boat Scott Baio (who I enjoyed when he played himself in the recent disappointing Wes Craven werewolf flick Cursed). I don’t remember Chachi from Happy Days fitting this description, nor related associations to chachis hitting on chicks all the time. I mean, he was so busy loving Joanie!