e/Sam Hill (euphemism)

Information
has gloss	eng: Sam Hill is an American English slang phrase, a euphemism or minced oath for "the devil" or "hell" personified (as in, "What in the Sam Hill is that?"). Etymologist Michael Quinion and others date the expression back to the late 1830s; they and others consider the expression to have been a simple bowdlerization, with, according to the Oxford English Dictionary, an unknown origin. Possible referents Candidate referents for the use date back to at the 1700s.
lexicalization	eng: Sam Hill
instance of	(noun) an inoffensive or indirect expression that is substituted for one that is considered offensive or too harsh euphemism