Home › Words › T › twillytwillytwilly means A machine for cleansing or loosening wool by the action of a revolving cylinder covered with long iron spikes or teeth; a willying machine.EtymologyCompare willy.nounA machine for cleansing or loosening wool by the action of a revolving cylinder covered with long iron spikes or teeth; a willying machine.Definitions & examples from Wiktionary (CC BY-SA 3.0).