grin like a Cheshire cat

== English == === Etymology === Attested since at least the 1780s. The reason why Cheshire was combined with cat is disputed: see here for more information. === Pronunciation === === Verb === grin like a Cheshire cat (third-person singular simple present grins like a Cheshire cat, present participle grinning like a Cheshire cat, simple past and past participle grinned like a Cheshire cat) (simile) To smile broadly, especially in a self-satisfied way. Synonym: smile from ear to ear ==== Translations ====