Green’s Dictionary of Slang

(US) an effeminate male homosexual.

1967		M. Braly On the Yard (2002) 248: ‘You have that sweet bitch put in my cell. Can you do that?’ ‘I don’t know, Red. Right now I can’t get him out of my cell.’ ‘Uh-huh,’ Red said knowingly, ‘huckily buck.’.
1979		Maledicta III:2 219: Dialect yields some rare words (huckle = the sort of nelly the US celebrated in the early novel The Scarlet Pansy).
2002		The-House-of-Love.org ‘Gay Men Names’ 🌐 hoop-stretcher • horse’s hoof • huckle • hula-raider.