What does jerkline mean?

A jerkline refers to a specific type of harness used for draft animals, particularly in the context of teams of oxen or horses. It consists of a single line that runs through a series of rings or loops, allowing the driver to control the animals more effectively by applying pressure to the jerkline. This mechanism provides better steering and communication with the team, making it easier to guide them during tasks such as plowing or hauling. The term is often associated with traditional agricultural practices.