Answer:

durn

AnswerCrossword Clue
DURNRural "Rats!"
DURNKin of "Shucks!"
DURN"Doggone!"
DURN"Heck!"
DURN"Yer ... tootin'!"
DURN"Yer .. tootin'!"
DURNKin of "Heck!"
DURNFarmer's expletive.
DURNMortimer Snerd expletive.
DURNRustic cuss word.
DURNCowpoke's oath
DURNRelative of drat
DURNRats!
DURNShucks
DURN"Dang it!"