Green’s Dictionary of Slang

(W.I.) of a child, continually or easily tearful, crybabyish.

1909		‘Tom Redcam’ One Brown Gal 36/1: Some of dem so fretful and cry-cry.
1926		E. Walrond Tropic Death (1972) 26: Rufus – a sulky, cry-cry, suck-finger boy nearing twenty – Big Head Rufus.
1957		F.G. Cassidy ‘Iteration as a Word-forming Device in Jamaican Folk Speech’ in AS XXXII:1 52: A cry-cry child is one who cries much, continually, or habitually.