Green’s Dictionary of Slang

(US Und.) a pre-arranged deal; the concoction of criminal guilt or charges.

1931		Irwin Amer. Tramp and Und. Sl. 158: Rib Up.–A frame-up; an arrangement ; a prearranged deal.
1962		Ragen & Finston World’s Toughest Prison 815: rib up – A frame-up; an arrangement; a pre-arranged deal.