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A meme that exploded in 2017. Tarnation originally came from a slang word for "damnation," which began in the 1700's.

Many people will take a picture of something and add a cowboy/country hat to it and say something that typically ends in "-tion."
noun & exclamation
used as a euphemism for “damnation.”

"wot n tarnation?"
via giphy
by wotntarnation March 07, 2017
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