What is "dropping fire"

Dropping \Drop"ping\, n.

1. The action of causing to drop or of letting drop; falling.

2. pl. That which falls in drops; the excrement or dung of animals; -- often used in the plural.

   Dropping bottle, an instrument used to supply small quantities of a fluid to a test tube or other vessel.

   Dropping fire, a continued irregular discharge of firearms.

   Dropping tube, a tube for ejecting any liquid in drops.