Green’s Dictionary of Slang

dingo adj.1

[? Aus. dingo dog or ding-a-ling adj./dingbats adj. + -o sfx (4); Brophy & Partridge, Songs & Slang of the British Soldier (1930), suggest Fr. slang dingot, mad]

crazy, eccentric.

Show quotations
[Aus]H. Nisbet Bushranger’s Sweetheart 169: I am dead sick of [...] the dingo life I lead.
[UK](con. 1914–18) Brophy & Partridge Songs and Sl. of the British Soldier.
[US]H. Miller Sexus (1969) 302: Queer masculine logic! Dingo! Absolute dingo.
[Aus]T.A.G. Hungerford Riverslake 245: You dingo bastards!