chunk of beef, n. — Green’s Dictionary of Slang

chunk of beef n.

also chunka beef

[rhy. sl.]

(Aus.) the chief, the boss.

1942		Argus (Melbourne) 18 Apr. 3s/6: ‘Chunks’ is a look meaning chief or boss[...] is short for ‘chunk of beef’.
1944		Maurer & Baker ‘“Aus.” Rhyming Argot’ in AS XIX:3.
1972		Dodson & Saczek Dict. of Cockney Rhy. Sl.
1998		R. Puxley Fresh Rabbit.
2002		Pete’s Aussie Sl. Home Page 🌐 chunk of beef: the chief, the boss.