Joke Collection Website - Talk about mood - What's the word for backstabbing?

What's the word for backstabbing?

The information about stab in the back is as follows:

1, people are too familiar with each other to know which knife hurts the most. ?

Always believing that you have me in your heart is the stupidest thing I have ever done. ?

3, duplicity, lip service, sinister villain, acting so well, why not go to the Oscar to receive the award. ?

4. I don't like intrigue, calculation and fake friendship; I like simple people and simple things.

5. remember. You will hurt people who love you. As for hurting others, you have no right. ?

6. The world has abused me thousands of times. I repay the world with a smile. If you stab me in the back, I will give you a cool smile. I'd say it's okay. You just missed it.

7. The most ridiculous thing in the world is that you are still lying when I know the truth.