Sam Hill built the roads that connected Eastern Washington to the Coast in the early 1900's. His estate, now an art museum located in Maryhill, WA (named after his daughter). Many thought he was crazy for thinking the roads could be engineered and completed. The use of his name when planning a task or acting in a way that is considered crazy or impossible.
What in the Sam Hill do you think you are doing?
by DRTina May 7, 2009
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just a word used when someone is confused. same idea as 'what the heck...'
What in the Sam Hill are you doing?
by Swarsfanatic May 11, 2005
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Sam Hill is a woman beater, a nonce and a waste of sperm all added together. What type of sperm was his father producing because it must've been fucking mutated. Sam Hill is not fit for this planet hence why they refer him to Hell. F*** you Sam Hill!
Woman: Sam Hill has been beating me again, look.
Man: Grab the pliers, we'll go castrate the bitch.
Woman: Yee.
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v. Another word for hell. Or can also be used as a curse word.
1. What in the Sam Hill is wrong with my computer?!
2. What in the Sam Hill do you think you're doing?
3. Holy Sam Hill...
by Ajix Black May 26, 2006
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What the hell...
(An elaboration of what. Sam Hill is a euphemism for hell. Often with the force of an exclamation. See examples for variations.)
What in (the) Sam Hill is going on around here?

What in (the) Sam Hill do you think you are doing?
by AmSh August 20, 2012
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