When I was one the Aussies liked to call themselves Showies, as they worked at the show. Once suggested they should be called Fairies as they worked at the fair, some hard work talking myself out of a kicking there!
When we were young we used to call them gypsies, then various alternative similar names. None particularly pleasant.

with those mad ride operators jumping between carriages, spinning them wildy by hand, if they weren't going fast enough.

"The facts have changed", Rishi Sunak

always called em 'carnies'

Kids,tired of being bothered by your pesky parents?
Then leave home, get a job & pay your own bills, while you still know everything.