#1 riffle v. [flick, ruffle] twitch or flutter; "the paper flicked". wn
#2 riffle n. [ripple, rippling, wavelet] a small wave on the surface of a liquid. wn
#3 riffle n. shuffling by splitting the pack and interweaving the two halves at their corners. wn
#4 riffle v. [flick, flip, thumb, leaf, riff] look through a book or other written material; "He thumbed through the report"; "She leafed through the volume". wn
#5 riffle v. [ripple, ruffle, cockle, undulate] stir up (water) so as to form ripples. wn
vizzz