We are as busy as bees getting ready for the party. What does "busy as bees" mean?

Sue decided to let sleeping dogs lie and to not ask her friends about their fight. What does "let sleeping dogs lie" mean?

Mary's party was supposed to be a surprise, but someone let the cat out of the bag. What does "let the cat out of the bag" mean?

The teenager was in the doghouse, because he came home late past his curfew and didn't call his parents. What does "in the doghouse" mean?

I was upset with Tom, so I gave him the cold shoulder. What does "cold shoulder" mean?

Toby is like a bull in a china shop, so everyone plays with him outside. What does "bull in a china shop" mean?

When Chris forgot to wear his Halloween costume to school for the parade, he stood out like a sore thumb. What does "stood out like a sore thumb" mean?

Many things in our town have gone to the dogs in recent years. What does "gone to the dogs" mean?

Sally was tickled pink when she won the spelling bee. What does "tickled pink" mean?

The teacher walked in and saw the kids writing on the wall. They were caught red handed. What does "red handed" mean?

After working for 12 hours straight, I looked like something the cat dragged in. What does "like something the cat dragged in" mean?

Mike and Ed are joined at the hip and go everywhere together. What does "joined at the hip" mean?

My friend finished telling me a crazy story and then she said she was pulling my leg. What does "pulling my leg" mean?