Tongue twisters are aptly named: it feels like your tongue is literally twisting. Try saying this: “She sells sea shells on the sea shore. If she sells sea shells on the sea shore, where are the sea shells she sells?”
The next time you hear that someone is <b>dead to the world</b>, don't worry! It just means that he's asleep. English is full of lingo that describes the world of sleep and dreams. Check out these interesting expressions that hopefully won't put you to sleep!