Old Biddy is a derogatory term used to describe an elderly woman, usually one who is seen as gossipy or meddlesome. The term is often used to refer to a woman who is perceived as being overly concerned with the affairs of others. The crossword solutions for Old Biddy are HEN (3 letters) and HAG (3 letters). HEN is a term used to describe a female chicken, while HAG is an old English term for an ugly old woman. Both terms are used to describe an elderly woman in a negative way.