Green’s Dictionary of Slang

(Aus.) the mouth.

1885

Bulletin (Sydney) 5 Sept. 18/4: It is only lately our Australian blackfellow learned to kiss his gin. He is still a clumsy performer. He looks at the big blubbery lips a long time, then shuts his eyes, then makes a dive, and four times out of five he missus the spot and drives his nose into her ‘opossum-trap.’.