Green’s Dictionary of Slang

moolie n.

(US)
(also mool)

a black person [mulenyam n.].

[UK] T. Fontana and S. Jablonski ‘Ancient Tribes’ Oz ser. 2 ep. 2 [TV script] I know who killed him [...] Adebisi, the moolie in the kitchen.
[US]J. Stahl Plainclothes Naked (2002) 124: ‘I’m starring in The Dean Martin Story.’ That’s what the moolie told him [...] Guy’s black as James Brown’s asshole and he’s playing Dean Martin.
J. Robinson Gospel of the Game 23: ‘I like this Moolie, he’s intelligent and he’s honest’.
[US]T. Pluck Bad Boy Boogie [ebook] ‘Had to beat the mool, didn’t you?’.
[US]D. Winslow The Force [ebook] ‘What, you got a monopoly on beating up moolies?’.
[US]T. Pluck Boy from County Hell 242: ‘[T]hese peckerwoods treated us [i.e. Italians] as bad as they did the moolies’.