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

See Examples For:

piece of cake

This last show, all I wanted was a giant piece of cake.

From The Wall Street Journal ● May 22, 2026

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

From Los Angeles Times ● Dec. 15, 2025

So, sure, getting to $400 billion should be a piece of cake.

From MarketWatch ● Nov. 7, 2025

When she got home, Mungnee was shocked to look inside the black bag and find only a brick, a piece of cake, and two bottles of water.

From BBC ● Oct. 16, 2024

I sat on a metal folding chair that felt cold against my legs, and I ate the whole piece of cake without bothering to talk in between bites.

From "Louisiana's Way Home" by Kate DiCamillo

Related Words

• cakewalk
• cinch
• no-brainer