who (in) (the) Sam Hill

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who (in) (the) Sam Hill

An emphatic way of forming any statement or question beginning with "who," typically when expressing frustration, anger, irritation, incredulousness, etc. ("Sam Hill" is a colloquial minced oath for "hell.") Who in the Sam Hill ate my lunch? That's the third time this month! A: "Who the Sam Hill was that guy?" B: "I dunno, just some weirdo, I guess." The game show gives you a lifetime supply of hot sauce if you win? Who in Sam Hill would want that as their prize?
See also: hill, SAM, who