Name Pump is a term used to describe a type of job that was popular in the early 20th century. It involves a person who stands outside a store or business and calls out the name of the establishment to attract customers. The term Name Pump is derived from the Esso brand of gasoline, which was popular at the time. The term is still used today to refer to someone who is employed to call out the name of a business or store in order to attract customers.