Green’s Dictionary of Slang

boggy n.

[ety. unknown]

1. (UK Und.) a man.

[UK]G. Kent Modern Flash Dict. 6: Boggy – kiddy, covey.
[UK]Flash Dict. in Sinks of London Laid Open [as cit. 1835].

2. (Aus.) a peasant.

[Aus]J. Byrell Lairs, Urgers & Coat-Tuggers 15: The confounded lunatic Irish boggie is likely to besmirch the whole confounded medical profession.