chiz, v. — Green’s Dictionary of Slang

chiz v.

also chizz

(UK juv.) to cheat, to swindle.

1948		C. Day Lewis Otterbury Incident 58: Ted was against this. He said it was too like chizzing.
1954		A. Buckeridge According to Jennings (1991) 73: It’s a mouldy chizz [...] If Old Winkie had any decency he’d let us off.