Green’s Dictionary of Slang

1. eccentric, bizarre, unpleasant, disturbing.

1964		Male mag. in H.S. Thompson Hell’s Angels (1967) 72: He could spin donuts on that hog with his feet on the pegs, and man, he was a wiggy cat.
1977		C. McFadden Serial 81: Millie [...] a lifelong Sierra Club member and indefatigable hiker and [...] ‘a little wiggy.’.
1994		G. Indiana Rent Boy 76: Never mind all the other wiggy viruses and microbes that stick around in your ca-ca.
2004		C. Hiaasen Skinny Dip 232: Her marriage to Roger, the wiggy RAF pilot.
2012		Independent 24 Jan. 36/1: Malcolm Gladwell, the wiggy genius author of The Tipping Point.
2023		(con. 1962) J. Ellroy Enchanters 378: She was ‘kooky,’ ‘wiggy,’ and ‘out of sight’.

2. confused.

1979		P. Hamill Deadly Piece 71: It’s that one over in Forest Hills that’s got the cops wiggy. They can’t make that one out at all.
2007		C. Goffard Snitch Jacket 155: Keep your head, Benny. Don’t go wiggy.

3. pleasing, enjoyable, exciting and up to date.

1966		H.S. Thompson Hell’s Angels (1967) 175: That wiggy little thing with the red shoes was all mine!
1966		R. Stone Hall of Mirrors (1987) 225: A bracing turn [...] A wiggy exhilarating turn.
1971		E.E. Landy Underground Dict. (1972).
1974		R. Stone Dog Soldiers (1976) 249: I was dicking this wiggy nurse.

4. (US drugs) intoxicated with narcotics.

1986

L. Heinemann Paco’s Story (1987) 12: I seen this goofy, wiggy-eyed, light-skinned spade up at Fire Base Gee-Gaw.