a piece of cake
noun phraseDefinition of a piece of cake
informal
: something that is easy to do
"How was the test?" "It was a piece of cake."
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“A piece of cake.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/a%20piece%20of%20cake. Accessed 23 May. 2022.
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