Web手指饼干. ladyfinger uk / ˈleɪ.diˌfɪŋ.ɡər/ us / ˈleɪ.diˌfɪŋ.ɡɚ/ noun US. a type of biscuit or cake with a long, thin shape and rounded ends, that is soft inside and hard outside and covered with sugar. Lady fingers are often used for making desserts .