The Cheshire Cat is a fictional cat appearing in Lewis Carroll's Alice in Wonderland. It appears and disappears at will, engaging Alice in amusing but sometimes vexing conversation. The cat often points out philosophical points that annoy Alice.
At one point, the cat disappeared gradually until nothing was left but its grin, prompting Alice to remark that she had often seen a cat without a grin but never a grin without a cat.
The cat also uses logic to offer non-solutions to Alice's question:
Another example of this annoying practice is presented when Alice asks for directions:
There are reports that Carroll found inspiration for the Cheshire Cat in a carving in a church in the village of Croft in the unitary authority of Warrington in the north west of England, where his father had been rector. The cat is named after Caroll's home county, Cheshire. (However, Jasper Fforde's novel Lost In A Good Book names the same character the "Unitary Authority of Warrington Cat".)
Brewer's Dictionary of Phrase and Fable says grinning like a Cheshire cat is "an old simile, popularized by Lewis Carrol". Brewer adds, "The phrase has never been satisfactorily accounted for, but it has been said that cheese was formerly sold in Cheshire moulded like a cat that looked as though it was grinning."
For the Blink-182 album, see Cheshire Cat.