A very cool person just chilling in life. May look sad and depressing, but once you know them they are the funniest people you could ever meet!
“Damn I kinda wish I was as cool and funny as Senin.”
Senin is a different breed. They like to call you racist and talk shit about your mother. Senin also loves to say deez nuts. Everyone knows that Senin is everything that has -ist at the end.