'To send to the right-about' definitions:

Definition of 'To send to the right-about'

From: GCIDE

Right-about \Right"-a*bout`\, n. [Right, adv. + about, adv.] A turning directly about by the right, so as to face in the opposite direction; also, the quarter directly opposite; as, to turn to the right-about. [1913 Webster]
To send to the right-about, to cause to turn toward the opposite point or quarter; -- hence, of troops, to cause to turn and retreat. [Colloq.] --Sir W. Scott. [1913 Webster]