Green’s Dictionary of Slang

(Irish/US) money.

1893		F.P. Dunne in Schaaf Mr Dooley’s Chicago (1977) 59: A few months ago iverbody had th’ rowly-bowlys [sic]. There did be long green shtickin’ out iv vest pockets.
1898		F.P. Dunne Mr Dooley in Peace and War 208: Whin he died, she marrid somewan else an’ took the roly-boly [sic] with her.