( informal , especially NAmE ) used as a mild swear word to show that you are angry or annoyed about sth, to avoid saying 'damn' :
Darn it! I've lost my keys!
( informal , especially NAmE ) used as a mild swear word to show that you are angry or annoyed about sth, to avoid saying 'damn' :
Darn it! I've lost my keys!
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005