参考译文

food idioms 10
趣味食品idioms 10 [下午茶－趣味食品习语]

out to lunch
MEANING: crazy, mad
She is totally out to lunch and you should never believe what she tells you.

a piece of cake
MEANING: a task that is easily accomplished
It was a piece of cake. I had everything done before lunch this morning.

polish the apple
MEANING: flatter someone
Nobody likes her because she is always trying to polish the apple with her teacher.

souped up
MEANING: change something to make it faster or more powerful by changing or adding something
The new car that his neighbor bought is a souped up model of the one that he had last year.