What it is that we do (WIITWD) is a phrase most often used as a way to distinguish between vanilla lifestyles and alternative lifestyles, particularly BDSM. This very broad, all-inclusive phrase used to refer to sexual activities that many people would consider to be kinky.
Although it is most commonly used to refer to the BDSM lifestyle or scene, WIITWD is also used to refer to other kinky activities and fetishes, including infantilism, polygamy, daddy and little relationships, and sometimes even homosexual relationships.