Green’s Dictionary of Slang

Mauie Wowie n.

also Maui waui(e), Maui wowee, Maui Zowie
[Maui, a Hawaiian island + SE wow!, an excl. of pleasure or astonishment]

(US drugs) a potent variety of marijuana, grown in Maui, Hawaii.

[US]A. Maupin Tales of the City (1984) 205: Once, after smoking half a joint of Mauie Wowie, he’d been reduced to using Crisco as a dip for Ritz crackers.
[UK]J. Morton Lowspeak 97: Maui-waui [...] Hawaiian-grown marijuana.
[US]P. Beatty Tuff 174: A plastic Sputnik model, a signed copy of Das Kapital, and a lid of grass — Maui Wowee to be specific.
[US]ONDCP Street Terms 14: Maui wauie — Marijuana from Hawaii.
[US]D.H. Sterry Chicken (2003) 146: A corncucoopia of mind-bending brain-numbers are laid out attractively [...] Maui Zowie Hurricane Swirl, Afghani Moses Bull Rush and Moroccan Fez Blower.
[US]T. Dorsey Cadillac Beach 198: One part Maui-Wowee rad resin weed that makes you see the Devil.