Green’s Dictionary of Slang

1. (US) intoxicated by drugs or alcohol.

1920		H. Wiley Wildcat 194: When I aims to git jazzed up I aims to git jazzed up.
1927		‘Sl. Expressions for Drunk’ in New Republic in AS XVI:1 (1941) 9 Mar. 70: [...] jazzed.
2005		D. Vandenberg Iron Circle 31: [T]he slumming Euro-trash trendoids jazzed up on hard drugs .
2021		J. Ellroy Widespread Panic 97: I chugged Claire’s absinthe [...] I drove home jazzed and jacked to the gills.

2. (US) excited, thrilled, pleased; thus unjazzed, depressed.

1918		in F.O. Braynard World’s Greatest Ship (1972) I 202: As a lady-killer Mackintosh [...] gets the [girls] all jazzed up before they can get their second wind.
1938		C. Webb ‘Wacky Dust’ 🎵 And only a sap will refuse to / be appled or jazzed.
1939		J. Campbell Babe is Wise 194: You look all sort of jazzed up.
1981		J. Wambaugh Glitter Dome (1982) 213: Buckmore Phipps told horror stories to Gibson Hand to get him jazzed up for another run at the boulevard.
1986		H.B. Gilmour Pretty in Pink 143: Any girl that did that to me, I wouldn’t be too jazzed to hold onto.
1997–2000		Da Bomb 🌐 16: Jazzed: Excited, worked up.
2000		Indep. Rev. 14 Feb. 11: I’m totally jazzed by being able to meet with chief executives.
2005		D. Vandenberg Iron Circle 188: [B]oy did they know their stuff, those mad, jazzed Thai whores.
2010		L. Redhead Thrill City [ebook] My plan was to drink a formidable amount of coffee, brainstorm while I was jazzed on caffeine.
2013		T. Dorsey Riptide Ultra-Glide 274: He slapped Pat on the back. ‘Are you getting fuckin’ jazzed?’.
2021		J. Ellroy Widespread Panic 90: I was jazzed and jacked-up exhausted.

3. augmented, embellished (esp. in a flashy, vulgar manner).

1921		N. Putnam West Broadway 45: ‘I don’t want the country all jazzed up to meet me. I want to catch it as it really is, with its kimono on and its hair in curlers’.
1930		W.R. Burnett Iron Man 216: She danced a jazzed-up version of the tango.
1944		J.T. Farrell To Whom It May Concern 17: So here I am, forty and 4F, and all jazzed up with an incipient civilian neurosis.
1952		C. Hamilton Men of the Und. 144: Nothing but a jazzed-up version of the Western bank holdup.
1981		J. Wambaugh Glitter Dome (1982) 49: The Weasel and the Ferret were jazzed up from winning all the loot.

4. of a woman, overtly sexual.

1949		Monteleone Criminal Sl. (rev. edn) 132: jazzed up jane A female no longer a virgin.
1955		B. Schulberg On the Waterfront (1964) 96: A jazzed-up kitten still fleshy with baby fat.

5. ostentatious, showy.

1947		(con. 1944) J.H. Burns Gallery (1948) 60: All jazzed up, aren’t you? You’ve enough energy to put the lights on again all over the world.
1957		F. Kohner Gidget (2001) 24: A jazzed-up Ford vintage 1930.
1969		D. Pendleton Executioner (1973) 100: That jazzed-up joint was a natural. Never saw such an over-decorated layout.
1992		D. Pinckney High Cotton (1993) 81: The jazzed-up divorcée was spoken of as the only person in the world who had had the guts to defy the invisible line.