Green’s Dictionary of Slang

Doozy n.

(US) a Duesenberg automobile.

[US]J. O’Hara ‘Pardner’ in New Yorker 22 Feb. 24/1: ‘I see you got a Doozy,’ said the boy. [...] Malloy foresaw ten minutes of boredom while he answered the same old questions about the Duesenberg.