Someone new to Alaska or the Yukon. Originally a reference to the Gold Rush newcomers.(noun)
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Use "cheechako" in a sentence
"The cold white silence of the Yukon Wilderness plays savage tricks on the minds of cheechako and sourdough alike."
"He remains cool, gathers dry twigs and branches, takes out his matches and builds his fire under a tree and ... well, we sourdoughs know the consequences of that foolish cheechako act."
"Sitka Charley tells this story in – 68 weather, in camp with Bettles, Prince, Louis Savoy, and a young cheechako."