Before covid lockdown I made my living as a street performer, doing magic shows for crowds of strangers. In that very niche community, “Fat hats!” is a common farewell or replacement for “good luck”. In this case “hat” refers to the donations in the hat rather than the actual hat.
They do/did here in Virginia. They’re “skill games” or something. Some law changed it something because they’ve been turned off with a sign taped to the screen for a while now.