Squab, n. 1. (Zoöl.) A nestling of a pigeon or other similar bird, esp. when very fat and not fully fledged.
2. A person of a short, fat figure.
Gorgonious sits abdominous and wan,
Like a fat squab upon a Chinese fan. Cowper.
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.