A neo-human is a person that looks athletic and/or strong but is in reality weak and/or unathletic.
A neo-human can also be a person that looks fat and/or weak that is in reality strong and/or athletic.
Marcus: That guy looks like he super strong.
Mancus: He is weak.
Marcus: How come?
Mancus. He is a neo-human.
A black person expressing how black they are.
Marcus: That man is really nigtanius.
Mancus: Oh, yeah he is really really nigtanius.
when the fart smells a little extra good.
Marcus: Come smell my fart its amazing.
Mancus: Oh so its Fartainius.