Emily Dickinson Lexicon

SQUAB, a. [In G. quappe is a quab, an eelpout; quabbelig, plump, sleek; quabbeln, to be plump or sleek, and to vibrate, Eng. to wabble; Dan. quabbe, an eelpout; quopped, fat, plump, jolly, our vulgar whopping; quopper, to shake.]

1. Fat; thick; plump; bulky. Nor the squab daughter, nor the wife were nice. – Betterton.
2. Unfledged; unfeathered; as, a squab pigeon. – King.