muck about/around

1. 闲荡; 混日子

"What's he up to? " -- "Oh, just mucking about."

"他在做什么? "――"哦, 不过是在混日子而已。"

2. 耍弄

Give me a straight answer, don't muck me about!

给我一个干脆的回答, 不要耍弄我!

muck in

1. 一起出力, 一起干活; 参加

If we all muck in we'll soon finish the job.

要是我们一起出力, 很快就能把活做完。

muck out

1. 打扫(畜舍)

I've mucked out the henhouses.

鸡舍我已打扫过了。

muck up

1. 把……弄脏

He fell down and came home with his clothes all mucked up.

他跌了一跤, 一身脏衣服回家。

2. 把……弄糟

My son mucked up the car engine by using cheap, low grade gasoline.

我的儿子使用便宜的低级汽油, 汽车引擎损坏了。

The hoarse tenor singer mucked up the recital.

沙哑的男高音把音乐会搞砸了。

"How was the exam? " -- "I mucked it up."

"考试情况怎样? "――"我全考砸了。"

as common as muck

1. 举止粗俗; 没有教养

When she starts talking you'll realize that she's as common as muck.

她一开口, 你就会明白这人缺乏教养。

drag through the mud/muck

1. 玷污; 诋毁

Your behavior is causing our reputation to be dragged through the muck.

你的行为在玷污我们的名声。