Meaning of cakewalk

cake•walk

1. (formerly) a promenade or march, of black American origin, in which the couples with the most intricate or eccentric steps received cakes as prizes.
2. a dance with a strutting step based on this promenade.
3. music for this dance.
4. something easy, sure, or certain.

1. to walk or dance in or as if in a cakewalk.