A new-comer to Alaska, ignorant of the terrain, the weather, the animals, the culture, the necessary driving skills in the winter, etc. Opposite of a sourdough.
-Did you see the 90-car pile-up on the Glenn Highway this morning on your way to work?
--Yeah, and how much you wanna bet that it was all caused by some goddamn Cheechako at the front of the pack?
--Yeah, and how much you wanna bet that it was all caused by some goddamn Cheechako at the front of the pack?
by SS January 22, 2004

Cheechako actually means "tenderfoot" - it is used to refer to anyone new to Alaska (anyone who has lived there for less than 25 years).
by pg191 September 16, 2013

by The Alex Supertramp March 13, 2008

Someone new to Alaska, Ignorant in the ways of the Last Frontier and Lacking the skills required to survive the Alaskan wilderness. Historically from "Cheecago", That's how the term originated, but now mostly ignorant liberal mamas-basement types from Seattle, Portland or San Francisco.
by Akhuntpro February 14, 2020
