Green’s Dictionary of Slang

cubbitch adj.

also cubbich
[SE covetous]

(W.I. Rasta) covetous, thus both mean and greedy.

[UK]Capt. Clutterbuck’s Champagne 233: Dis brown lady too bad, cubbich as a ’tar-apple tree. (n.b. the star-apple tree does not cast its fruit, however ripe).
[WI]Anderson & Cundall Jamaica Proverbs and Sayings 9: Cubbitch fe one plum, you lose de whole bunch.
[US]M. Beckwith Jamaica Proverbs (1970) 30: Cubbitch fe one plantain you lose de whole bunch.