■ verb
1》 turn over something, especially pages, quickly and casually.
↘( ~ through ) search quickly through.
↘disturb the surface of; ruffle.
2》 shuffle (playing cards) by flicking up and releasing the corners of two piles of cards so that they intermingle.
■ noun
1》 an act of riffling.
2》 N. Amer. a shallow part of a stream or river.
↘a patch of waves or ripples.
Origin
C18: perh. from a var. of ruffle , influenced by ripple .