脣焦舌敝 written by chen1admincategoried in 中国成语大辞典 嘴干舌破。形容说话甚多、反复陈述而极度疲劳。语本汉赵晔《吴越春秋·夫差内传》:“焦脣乾舌,苦身劳力,上事群臣,下养百姓。”