Green’s Dictionary of Slang

jazzy adj.1

[SE jazz; both senses refer to the music and its image rather than to the sl. use]

1. (US) bright, lively, exciting.

[UK]Variety 30 Nov. 19: A dance number of the jazzy syncopated type.
[US]H.C. Witwer Fighting Blood 76: So the three of us does some close harmony on ‘Silver Threads Amongst the Gold,’ [...] winding up with something good and jazzy.
[US]R. Chandler Big Sleep 124: She’d make a jazzy week-end, but she’d be wearing for a steady diet.
[UK]M. Harrison Reported Safe Arrival 9: He wore a blue jumper of that inarticulate boisterousness called ‘jazzy’.
[US]E. Hunter Blackboard Jungle 166: This was going to be real jazzy.
[US](con. 1945) G. Forbes Goodbye to Some (1963) 273: You see those murals? Are they jazzy or not?
[UK]R.L. Finn Time Remembered (1985) 125: The Lane on Sundays, the blaring jazzy lane.
[US](con. 1986) G. Pelecanos Sweet Forever 73: Lookin’ for somethin’ jazzy and fine.
[UK]Indep. on Sun. Real Life 23 Jan. 3: There’s no [...] jazzy explosion of clashing hues.

2. (US) ostentatious, brash.

[US]Wash. Times (DC) 30 May 31/1: Jazzy ways of wearing your jewels.
[US] letter 8 Nov. in P. Jay Sel. Correspondence of Burke and Cowley (1990) 147: I wrote a jazz poem in jazzy prose.
[US]R. Chandler ‘The King in Yellow’ in Spanish Blood (1946) 69: Your clothes should be very jazzy. Very jazzy indeed, Steve.
[US]‘Hal Ellson’ Duke 71: He had a big jazzy car.
[US]T. Capote Breakfast at Tiffany’s 76: I’ve always thrown out such a jazzy line.
[US]‘Iceberg Slim’ Mama Black Widow 79: I recognized the huge black guy [...] as a flunkey for the jazzy minister.
[US]D. Goines Never Die Alone 14: The bastard won’t be so jazzy when [...] the boys finish with his ass.
[US]D. Pinckney High Cotton (1993) 81: A jazzy woman, my mother called her, a divorcée, sold us the house.
[SA]Sun. Times (S.Afr.) 27 Jan. 21: She too sported a jazzy Afro.
[US]N. Walker Cherry 23: [of tennis shoes] ‘All white. And none of the jazzy designs on them either’.