Green’s Dictionary of Slang

growl n.4

1. (Aus.) a fight, an argument.

[Aus]Argyle Liberal (NSW) 7 Nov. 7/3: ‘The Dervener and Ready Made Mat, for instance, they have had a few growls already. The Dervener can’t get over Ready insinuating last night that he was a fowl thief.’ .

2. (UK juv.) a complaint, a whinge.

[UK]A. Brazil Leader of the Lower School 11: ‘We must have our growls — it lets off steam’.