The hinus is the skin between your butt cheeks, also it can be the skin right before your back that is between your butt crack.
Dude i got a wedgie the other day and it was all the way in my hinus.
Dude! My hinus itches really really bad!
sumone who is really arrogany. An arsehole
That guy today was a hinus . . he pissed me off!