piece of cake

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.

Example Sentences

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

“It’s kind of like if you have a nice piece of cake and they bring it to us on a plate, we’re going to eat the cake,” Sanei said.

From Salon

“This is the kind of place where you go to the polls and the workers will have a cookie or a piece of cake for you,” he said.

From BBC

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

Owning these harlequins should be a piece of cake, and the woman who spent most of her career sticking it to abusive husbands and predatory bankers could be just the man to get things moving.

From Salon

Related Words

• cakewalk 
• cinch 
• no-brainer