dead-nuts adjective 1adverb 1 adjective1 •(informal) Precise, exact, completely accurate.“Told you that bitch was trouble. You gotta listen to old Mike.” “Okay, you were dead-nuts on that one.” — 2011 adverb1 •(informal) Precisely, exactly, completely.Jockey: My opinion's of little account, But I don't mind admitting, yer honour, I am not dead nuts on my mount. — 1890
