The phrase "patrol wagons" can be replaced with several synonymous terms. One commonly used term is "police vans", which refers to a vehicle used by law enforcement to transport detainees or equipment. Another synonym is "paddy wagon", which is a term that originated in the late 19th century to describe a police vehicle used to transport drunk or disorderly individuals. The term "squad car" can also be used to refer to a vehicle used for police patrols, and "black maria" is an antiquated term that was used to describe a police van used for transporting prisoners. These synonyms all refer to vehicles used by law enforcement for purposes such as transporting prisoners, patrolling areas, or carrying equipment.