a character in Lewis Carroll's novel Alice in Wonderland. It is a cat that disappears, leaving only its smile behind. If a person is described as smiling like a Cheshire cat, it means that they have a broad, fixed smile He just sat there, grinning like a Cheshire cat and saying nothing. 他只是坐在那里，像柴郡猫一样咧嘴笑着，什么也没说。