There are many jokes about what steamed bread is.

Shantou Ao is a dog named Shantou. Calling it will reply to Ao. Application in reality is to make fun of others and call them steamed buns. If you respond, you admit that you are a dog. But if it is between friends or lovers, it may be just a joke with you.

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Other jokes:

Duanzi car horn code:

If someone intercepts you, you can drop ... drops (one long and two short) and answer each other.

The signal to stop is to whistle: Didi * * * Didi * * is long and short, and stops when you wave.

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