Carny

Frankie (Gary Busey) and Patch (Robbie Robertson) have a system. Frankie wears clown makeup and sits in the dunk-tank cage, howling insults at midway passersby. Patch is out front collecting dollars from marks eager to make Frankie and his big mouth take a dive.
It's a good town-to-town living for the two pals. Then Donna (Jodie Foster) came along. (official distributor synopsis)