Doggone it

[Shelley Hanson/KlezmerAllThatJazz]

"Doggone it" is and has been for many years a common slang expression -- a
mild exclamation, equal to "darn it" -- which is a non-profane way to say
"Damn it." It is not considered cursing, and saying "doggone it" to native
English speakers now would indicate that you are VERY outdated in American
slang -- or that you have watched a lot of Westerns. (John Wayne and other
cowboy heroes have been known to say "doggone it.")