Whipping is the act of beating partners before or during the sexual intercourse with something, for example whips, lashes or anything else. Whipping like spanking are a light sub-form of BDSM, when a person with open hand or with some object strikes other person's buttocks, usually as a form of punishment.
Sometims a person, usually female is being tied up and used for sex purpose. Blowjobs, regular sex, anal or even sometimes humiliation until tied up person get orgasm.