What are some funny jokes about Shanghai dialect?

A Sichuan migrant worker from Beijing fell ill and went to the hospital. The doctor asked him what happened, what happened to him. He replied "I'm cold" (he used Trump at that time), which means "I have a cold", but the doctor heard that "his mother has arrived". Then he wanted to ask the doctor a question and said, doctor, I want to kiss you. The doctor was a lesbian, so he was shocked. Finally, after making it clear, he wanted to go to the toilet and asked, where did the toilet in your hospital collapse? As a result, the doctor was surprised and said, do you know Master Mao of our hospital?