Joke: What does it mean not to go to the toilet in my dream?

A single man visited a dairy farm and found that the machine for sucking milk for cows was quite good. He secretly wrote down the phone number of the manufacturer and bought one. It's really cool to go home and put it on my brother. It's about to be filmed, and I can't pull it out after filming. Call the manufacturer, and the manufacturer asks: How much milk is squeezed out? A: Not much. The manufacturer said, "Keep squeezing, our company can't pull milk without a kilogram of machine."