Top Definition
When you say something is a "piece of cake," it means it is very easy to do.
In the 19th and early 20th centuries, African Americans started "cake walks." They walked or danced around a cake in pairs, and the best couple won the cake. This is how the idioms "cake walk" and "piece of cake" came about -- both meaning that something is very easy to do.
A: Hey! How did you do on the exam?
B: I got an A. The exam was a piece of cake.
by TKrattlesnake January 19, 2015
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