Green’s Dictionary of Slang

Rin Tin Tin n.

[rhy. sl.]

(Aus./UK) gin.

[UK]T. Lewis GBH 84: ‘I’ll have a drop of Rin Tin Tin’.
[Aus]R. Aven-Bray Ridgey-Didge Oz Jack Lang 14: ‘What would you like to drink’ he asked kindly. ‘I am very partial to a little Rin Tin Tin,’ she smiled coyly.