1
general::
In or from all directions, on every side, as in Questions were coming right and left, or She was giving orders right and left. This idiom, first recorded in 1839, uses the directions right and left to signify all sides.
American Heritage Idioms
2
general::
Phrase(s): right and left [and] left and right
to both sides; on all sides; everywhere. • I dropped the tennis balls, and they rolled right and left. • There were children everywhere— running right and left.
McGrawhill's American Idioms And Phrasal Verbs