Green’s Dictionary of Slang

(Aus.) to use obscene language towards.

c.1895		H. Morant ‘Beyond His Jurisdiction’ in Cutlack Breaker Morant (1962) 144: For the boss began to language, and ‘The Ranger’ languaged back.
1900		Bulletin (Sydney) 2 Jun. 14/1: A pair of ‘travellers’ were lately haled before a local Rhadamanthus charged with ‘languaging’ a squatter who refused them rations, and were ordered to quod.