饭桶的英文：
do-nothing
good for naught
good-for-naught
poor tool
scalawag
scallawag
scallywag
scapegrace
sculpin
wastrel

参考例句：

You are a really good-for-nothing.
你真是个饭桶。

I feel like a perfect arse!
我觉得自己就像个饭桶！

"Do not sit about like a lazy, good-for-nothing!"
别呆坐着像个饭桶一样!

But I'm a good-for-nothing, you know.I can't look after you."
不过我是饭桶，你知道的，照顾不了你。”

You'll never get an interesting story out of that meatball - stop inviting him.
你别想从那个饭桶口里听到什么有趣的事，别再邀他了。

If a handful of school kids can topple our Party, government and army by a show of force, we must all be fatheads
几个学生娃娃一冲，党政军就全部瓦解，那除非我们这些人完全是饭桶。

nothing是什么意思：
pron. 没有什么，无关紧要
n. 不关紧要之事

Sow nothing; reap nothing
不播种,无收获

There is nothing to be ashamed of
没有什么见不得人的事

They lacked for nothing.
他们什么都不缺少。

good是什么意思：
adj. 好的；令人满意的；愉快的；仁慈的
n. 好处；利益；有道德的人或事
adv. 好

A good appetite is a good sauce
饥不择食

The prompt goods have good qualities.
当场付款的物品质量不错。

Be not simply good; be good for something.
不要单纯做个好人，还要做个能派上用场的人。

naught是什么意思：
n. 零，泡影
adj. 无用的

Better aught than naught.
有点总比没有强。

Thank goodness my fears were all for naught.
谢天谢地，我的担心都是多余的。

Distance is naught while heart with heart can meet.
心心能相印，距离等于零。