Xenogender

A xenogender is a gender based on a parasitic alien called the Xenomorph. These people feel neither man nor woman, but alien. The genitals of these creatures are hidden under a thick layer of gel. This gender feels excluded, but would like to have contact in a malicious way. ('Cause aliens and shit)
A scientific study has shown that xenogender people often suffer from: ADHD, PTSD, aids, homo etc.

Miss Margret: Hello everyone, please introduce yourselfs.
John: Hey Miss Margret! My name is John and I am a xenogender.
Ferdinand: Is he like a Xenomorph.
Juan: No he is just retarded.