A whip is a long, thin leather sex toy that is often used to inflict pain/pleasure upon a sex partner. Whipping is popular in the bondage, discipline, sadism, masochism (BDSM) community. Because pain releases endorphins in the brain, many people use painful sex toys like whips to intensify sexual pleasure.

A whip is operated in a swift motion where the flexible end slaps the receiving partner, often creating a sharp pain, and sometimes even mild cuts or scars, on the skin.

There are many different kinds of whips used during sex. A flogger is the best kind of whip for a person new to sadomasochism. An experienced dominant might go for a more painful and advanced type of whip, such as a single-tailed whip or a "cat o’ nine tails" whip. It’s also not uncommon to use a belt as a whip. It’s important that the dominant partner knows how to use a whip properly, because improper use of a whip could result in deep lacerations. In sexual play where pain is involved, complete respect - as well as a safe word - are essential