Green’s Dictionary of Slang

doozie n.

[doozy adj.]

1. (US, also doosie, doosy, dooze, doozey, doozy, duzey) a thing or person deemed to be extraordinary, remarkable or otherwise noteworthy.

[US]DN IV 274: Dozy [sic] adj. Term of praise. ‘Isn’t that fish a dozy?’.
[US]Ogden Standard (UT) 2 May 9/4: Anything that is O.K. is always ‘Jake’ [...] ‘Doozy’ is easy or agreeable.
[US] in Randolph & Legman Ozark Folksongs and Folklore (1992) I 409: Had a gal named Susie, (Surely was a doosie,) / Sassy little floozie / Down on the Bigerlow farm.
[US]Monteleone Criminal Sl. (rev. edn) 72: doozy Attractive; excellent.
[US]Goldin et al. DAUL 64/2: Duzey. (Carnival) Anything unusual.
[US](con. WWII) B. Cochrell Barren Beaches of Hell 255: I can still throw a doozy.
[US]Wentworth & Flexner DAS 156/1: doosy doozie doozy [...] 1951 : ‘The first orchestra I ever had was a real doozie.’ Radio broadcast.
[US]C. Himes Pinktoes (1989) 87: ‘Did you get to see it?’ [...] ‘No, but I’ve heard it’s a doozie.’.
[US]Cab Calloway Of Minnie the Moocher and Me 124: We had one doozy of an opening in Virgina Beach.
[UK]M. Amis London Fields 281: The vaulting viruses, all those wowsers and doozies and lulus, are of course increasingly numerous.
[US]L. Pettiway Honey, Honey, Miss Thang 45: Well, he was a doozy!
[UK]Observer Rev. 20 June 3: Did he think, I ventured with another doozy, that his work was taken seriously enough as an art form.
[UK]Guardian Editor 7 Jan. 16: The Queen has a doozy of a driveway with its gold-gilded gate.
Morn. Star (Vernon, BC) 9 May 58/2: If you particularly like gags involving animals getting maimed, there’s a doozie.
[UK]D. Mitchell Black Swan Green 309: That’ll be one doozy of a shiner.
[US]T. Robinson Hard Bounce [ebook] I knew a hangover when I saw one, and she looked like she was coping with a doozy.

2. (US campus) a hard examination.

[US]Baker et al. CUSS.