Green’s Dictionary of Slang

cloy n.

also cloye
[cloy v. (2)]

1. (UK Und.) a thief, a pickpocket.

[UK]Grose Classical Dict. of the Vulgar Tongue n.p.: Cloyes, thieves, robbers.
[UK]Lex. Balatronicum.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.

2. see cly n. (2)