xeS means: This is a type of sex play between men and women. While the girl is wearing a strap, the man has a fleshligth that he attaches to his dick. They perform an inverted type of sex where the girl fists with the man’s fake pussy using her fake penis. (in Community Dictionary, added by Heath Webster)

What else does xeS mean?

  • The upside-down sex is called Xes and is much more enjoyable: (in Community Dictionary, added by Malachi Phillips)
  • Analy penetration of people is a way to get them to pwn you. Then stick your dick in their mouth. (in Community Dictionary, added by Erica Chavez)