A flogger is a device used to flog, or whip, a consenting partner, usually during a BDSM scene. Floggers typically consist of several tails attached to a rigid handle. The tails may be made from a number of materials, including horsehair, rubber, or leather.

In BDSM, the aim isn't to harm but to use pain to increase sensation, and therefore sexual pleasure.

Flogging is something of an art. When flogging someone, the flogger should start out slowly and softly, and take cues from his or her partner. Establishing a safe word is important during a flogging scene; the traffic light code - green for continue, yellow to slow down, and red to stop - is very common.