我姓张我不脏
[wŏ xìng zhāng wŏ bù zàng]
This name humorously means 'I am Zhang and I'm not dirty'. In Chinese culture, some names sound like certain expressions. The pronunciation of '张' (a common surname) sounds similar to the phrase for being dirty or corrupt in slang, hence the clarification 'I’m not dirty'. It’s a joke about misunderstanding surnames.