A volatile, unsteady, or whimsical man or woman.

–From the 1811 Dictionary of the Vulgar Tongue.

The canting or slang language.

–From the 1811 Dictionary of the Vulgar Tongue.

Counterfeit sleep: cats often counterfeiting sleep, to decoy their prey near them, and then suddenly spring on them.

–From the 1811 Dictionary of the Vulgar Tongue.

A foolish grinning fellow, one who grins without reason.

–From the 1811 Dictionary of the Vulgar Tongue.