2. Unfledged; unfeathered; as, a squab pigeon.
Origin: Cf. Dial. Sw. Sqvabb a soft and fat body, sqvabba a fat woman, Icel. Kvap jelly, jellylike things, and and E. Quab.
3. A thickly stuffed cushion; especially, one used for the seat of a sofa, couch, or chair; also, a sofa. Punching the squab of chairs and sofas. (Dickens) On her large squab you find her spread. (pope)