To dream of the broken washboard, symbolizes the broken hopes, pain and disappointments. The washboard could also symbolize the tiredness the one is suffering from.
Dream dictionary: washboard dream meanings
…To see a washboard in your dreams, is indicative of embarrassment. If you see a woman using one, it predicts that you will let women rob you of energy and fortune. A broken one, portends that you will come to grief and disgraceful deeds through fast living….