Green’s Dictionary of Slang

(US) (contemptuous) term of address to a homosexual man.

1973		‘Rich Cummings’ Suck Slave 69: ‘I got his reading list, I’ll show you when Fruitsie gets finished. C’mon, Fruitsy, suck it!’ [Simes:DLSS].
1975		‘S. West’ Hard-headed Dick 43: ‘Sorry, fruitsie dear,’ he said, sounding neither sorry nor affectionate [Simes:DLSS].