Definition of shuffle step:
(n) :
the act of
shuffling cards; a rhythm commonly used in blues music. Consists of a series of triplet notes with the middle note missing, so that it sounds like a long note followed by a short note. Sounds like a walker dragging one foot
"he made a real mess of the last shuffle"
(v) :
to mix up (cards) in a random order before a card game; to walk without picking up one's feet