piece of cake

Idioms  

1. Something easily accomplished, as in I had no trouble finding your house—a piece of cake. This expression originated in the Royal Air Force in the late 1930s for an easy mission, and the precise reference is as mysterious as that of the simile easy as pie. Possibly it evokes the easy accomplishment of swallowing a slice of sweet dessert.

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Example Sentences

“One day when I’m 40, I’ll be able to say, ‘That was a piece of cake.’

From Los Angeles Times

And no matter how it all shakes out, it’s inevitable that many people will continue to see everything as Netflix, although navigating all that content may not necessarily be a piece of cake.

From Salon

“Or an Incorrigible to guard a piece of cake!”

From Literature

“A piece of cake,” he said of the flight.

From Literature

Yet it was rather telling that Howe later referred to that bruising window as a "piece of cake" compared to these past few months.

From BBC

Related Words

• cakewalk
• cinch
• no-brainer