A Mats is a stupid nigger who gets his mom to cut up a bowl of mango for him. He is an anime addict and sits in the back of the class laughing at anime.
Mats is a guy who would absolutely violate you in bed. He is the strongest and smartes species of male humans you can find. Every Mats has a big penis, the size can be compared to a baseball bat or a 1.5 Liter sized cock. When you see a Mats you will instantly be dripping wet as if you just came.
Mats: Hey, my name is...
Girl: IS IT MATS?!
Mats: Yes, is it because you can see my third leg?
Girl: Sex?
Proper Noun Something extreme or paranormal. Originated in the southern Swedish accent as a slang word. Things that are extreme are worded as Mats' possesion.