From Longman Dictionary of Contemporary Englishconfound it/him/them etcconfound it/him/them etcANNOY old-fashioned used to show that you are annoyed with someone or something → confound
Examples from the Corpus
confound it/him/them etc• And if Callie confuses them, Mona confounds them.• Placed there to confront and confound him.• She summons Deronda and pours out her desire to be what he wants, her inarticulate misery confounding him.• Use their expectations and then confound them.• Hell and the devil confound it, this was his home! 