If you are a British in America try to speak without the British slang and save quite a big deal of bewilderment. Well, it is not a disease it is just a regional dialect and sometimes you might feel funny and sometimes embarrassed. By all means it becomes enjoyable for a future joke, when you are applying your British slang in a place where it is not used widely. Truly Americans use less slang than the British contrary to popular beliefs but still there is slang for Americans too. Slang changes pretty quickly some term that mean a way 10 years before might not mean the same today. If a British is going to mention knocked up for someone that is rapping on the door to an American, the situation can be funny, because Knock up in American slang means pregnant.

There are many words that are used in American with a totally different pronunciation when put in to use in the British slang like schedule spelt sh