If you are one of these tourists or learners, you are very likely going to hear plenty of British slang spoken in pubs, restaurants, public transport and on the television. So, it would be no bad thing to familiarise yourself with some of these colourful expressions. These expressions are typically British slang and are used in spoken language and informally.
1. Au fait - this is an example of a French expression that has become part of the English Language. It means to have good detailed knowledge of something. (This is not slang but a very British English expression.)
Au fait -这本来是法语短语，现在成了英语中的一部分。它的意思是对某事物有非常细致的了解。（它不是俚语却是非常地道的英式表达）
"She is au fait with the company's rules and regulations."
2. Blinding - if something is blinding, it means that it's excellent.
"She makes a blinding roast dinner"
3. Bugger all - if you've got bugger all for dinner, it means you have nothing. (This is an impolite expression so use it with caution)
Bugger all -如果你说晚餐吃个屁，那就是说你什么也没有。（这种表达十分不礼貌需慎用）
"I worked 7 hours on that job and I got bugger all thanks for my efforts".
4. Cock Up - This can be used as a verb or a noun and it means to make a serious mistake or a mistake. (It has nothing to do with male parts!)
Cock Up -这个俚语既可用作动词也可用作名词，它的意思是犯了很严重的错误或犯错误。（这个表达跟男性器官毫无关系。）
"You really cocked up this time. What are you going to do?"
5. Donkeys' years - a long time or ages
Donkeys' years -很久很久，好多年。
"It was so great to see Sally again. I hadn't seen her in donkey's years."
6. Gobsmacked - "Gob" is mouth is British English and if you smack it, you probably would do it because you are amazed or shocked.
Gobsmacked -"Gob"是嘴巴的意思，是英式英语，如果你用这个表达"smack it"因为你被震惊到了，所以你可能会张大嘴巴。
"I was gobsmacked by how much weight Pete had lost".
7. Gormless - another way to say vacant or clueless.
Mr Bean's gormless look.
"She always has a gormless look in meetings."
8. Gutted - really upset.
"I was gutted when I didn't get the job".
9. Hunky-dory - fine, going well,
"How are things with you?"
"Everything is hunky-dory, thanks."
10. Knackered - very tired, exhausted
"I've been working for hours on this report. I'm knackered"
11. Lurgy - if you've got the lurgy, it means you are ill with the flu or a virus. It means that people will stay away from you.
"Where's Sarah today?"
"She's off sick. She's got the lurgy".
12. Nice one! - If someone is impressed by what you've done, they could use this expression. It's similar to "good job" in American English. It can also be used sarcastically.
Nice one! -如果一个人对你所做的事情印象深刻，他们就能用这个表达方式。它同美式英语里的"干得好"同义，也可以用于带有讽刺意味的夸奖。
"I managed to get two tickets for the One Direction concert at the O2 arena". "Nice one, mate!"