subs. (military).1. See quot.
1785. GROSE, A Classical Dictionary of the Vulgar Tongue [EGAN], s.v. NIGHTINGALE. A soldier who, as the term is, sings out at the halberts. It is a point of honour in some regiments, among the grenadiers never to cry out, or become NIGHTINGALES, whilst under the discipline of the cat of nine tails; to avoid which, they chew a bullet.
2. (common).A prostitute. See BARRACK-HACK and TART.
3. See SPITHEAD, CAMBRIDGESHIRE, and ARCADIAN NIGHTINGALE.