Green’s Dictionary of Slang

(US) to cheat or trick.

1940		W.R. Burnett High Sierra in Four Novels (1984) 414: A conman ootches some chiselling sucker out of a big roll. He’s a criminal.
1947		B. Schulberg Harder They Fall (1971) 237: But you’re not gonna ootz us out of that extra dough?
1962		R. Serling ‘The Whole Truth’ in New Stories from the Twilight Zone 2: It was not the extra sixty-five bucks he ootzed out of a hapless customer.