1
general::
Phrase(s): roll back
[for something] to return, rotating or turning or moving on wheels. • I rolled the ball away, thinking it would roll back. It didn’t. • I struck the golf ball out of the sand trap, but it rolled back., Phrase(s): roll something back
to return something to someone by rotating it, as with a wheel or a ball, or moving it back on wheels. • I intercepted the ball and rolled it back. • Jane rolled back the ball.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Decrease, cut back, or reduce, especially prices, as in Unless they roll back oil prices, this summer's tourist traffic will be half of last year's. [c. 1940]
American Heritage Idioms