出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第292页（253字）
本想卖弄聪明，结果正好相反，例他本想在大家面前显示自己的本领，结果弄巧成拙，闹了一场大笑话。
He thought he was going to startle everyone with his cleverness，but he put his foot into his own mouth by being too smart and became alaughing stock of all．