1. [late 17C; 19C] a watchman, a beadle [punning cant; supposedly linked to the improvement of the London watch system by Charles I, but no use of the word for 150 years afterwards is recorded].
2. [mid-19C] (US) a policeman.
3. [mid-19C] a gold watch [pun on sense 1].
[early 19C] (UK Und.) a watchman’s box.
[early 19C] a watchman, a beadle.
[mid-19C] (US) a lamp-post.
[early–mid-19C] to turn over a watchman in his box.
[early 19C] to upset a watchman in his box, a popular ‘game’ among upper-class rowdies.