To evade military duty; also to capture, to plunder in a small way.

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1866.  They flanked me in double quick, and though my time was not out, I was constrained to depart those coasts prematurely for fear of being a desolated victim of extortion.—C. H. Smith, ‘Bill Arp,’ p. 32. (Italics in the original.)

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1867.  They would lead the horses out, take the greenbacks from the prisoners, and when near their home would flank out with a horse, and never come up, &c.—J. M. Crawford, ‘Mosby and his Men,’ p. 295.

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1872.  When the men wished to escape the attention of pickets and guards by slipping past them, they said they flanked them; drill and detail and every irksome duty was flanked, when it could be avoided by some cunning trick.—de Vere. (N.E.D.)

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1879.  The Government never made anything by employing these “rebels,” as they invariably “flanked” more than they received as pay.—‘Southern Hist. Soc. Papers,’ vii. 394 (Richmond, Va.).

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