Riffle  —v. (-ling) 1 (often foll. By through) leaf quickly through (pages). 2 a turn (pages) in quick succession. B shuffle (playing-cards), esp. By flexing and combining the two halves of a pack. —n. 1 act of riffling. 2 us a shallow disturbed part of a stream. B patch of waves or ripples. [perhaps var. Of *ruffle]