Green’s Dictionary of Slang

fireball show n.

also burn’em up outfit

in carnival use, a carnival that goes to extremes, whether as to dishonest sideshows, pushing the boundaries of sexual display, etc.

Show quotations
[US]W. Keyser ‘Carny Lingo’ in http://goodmagic.com 🌐 Fireball Show — A carnival of the most disreputable sort, full of dishonest games, really strong kootch shows and the like. Also a ‘Burn’em Up Outfit’.