Green’s Dictionary of Slang

the nickname of a hook-nosed man, thus a Jew.

1874		J. Greenwood Wilds of London (1881) 154: This is Mr. Solomons who says this, and meanwhile hookey Banet over yonder is confiding the same yarn to his innocent neighbour.
1900		Sydney Sportsman (Surry Hills, NSW) 3 Oct. 1/4: And Benjamin Hookey, leviathan bookie, / Had waited for backing the Titan too late.