ELI5: Explain Like I'm 5

Bicycle messenger

A bicycle messenger is a person who rides a bicycle to deliver things like packages, documents, and other items from one place to another. For example, if someone needs to get an important document to the other side of town, they might hire a bicycle messenger to take it for them. The messenger will ride their bike to the place where they need to deliver the item, and then deliver it to the person who needs it. They usually get paid for delivering the item.