Green’s Dictionary of Slang

coe n.

[cove n. (1)]

(UK Und.) a man.

[UK](con. 1737–9) W.H. Ainsworth Rookwood (1857) 163: Dells, doxies, kinching morts, and their coes.
[US]Da Bomb 🌐 7: Coe: A man, fellow, chap.