1. Shuffling by splitting the pack and interweaving the two halves at their corners.
2. A small wave or succession of small waves; ripple

1. To shuffle (playing cards) by separating the deck into two parts and riffling with the thumbs so the cards intermix.
2. To form, flow over, or move in riffles
3. To flip cursorily; thumb
4. To ruffle slightly; ripple
5. To leaf through hastily; specifically; to leaf (as a stack of paper) by sliding a thumb along the edge of the leaves; to shuffle (playing cards) by separating the deck into two parts and riffling with the thumbs so the cards intermix
6. To manipulate (small objects) idly between the fingers