set foot on hot wheels service. There is the word service here. As the name implies, it refers to the service industry, such as restaurants, bath centers, KTV and so on. While stepping on hot wheels has two meanings. One is that business is booming and waiters are shuttling back and forth, just like stepping on hot wheels. This is a compliment!

Second, this person is in a hurry to do things, especially in the catering industry. He runs too fast, and if he accidentally stains the clothes of the guests, the guests will scold him, "You are blind! Step on hot wheels, why don't you come by rocket! "

this is a derogatory term.