Green’s Dictionary of Slang

cherry-ripe n.⁴

nonsense.

1943		R. Llewellyn None But the Lonely Heart 55: I don’t know about breathing purple [...] It’s proper cherry ripe, ain’t it?
1960		J. Franklyn Dict. of Rhy. Sl.
1972		Dodson & Saczek Dict. of Cockney Rhy. Sl.
2001		M. Coles Bible in Cockney 92: How much longer do I have to put up with all this cherry?