Norwegian Slang For An Extremely Large Male Reproductive Organ used mostly by vulgar people for an example people at the Oslo underground stations at nights.
Also a person that is really good in school but cant really focus on helping others as he tries to do his own shit stuff.
1. His Girlfriend Loved His Large Mats as it tastes like coca-cola with cola sauce.
2. Some guys: Hey can I see how big your Mats is? The train comes soon
Morten: Sure help yourselfs
2. Adam: Can I have help with this please?
Morten: Sorry I need to focus on my own work first.
Adam: Fuck, you're acting like a Mats