Mäkäräinen is a Finnish (used inside Finand) lastname or
nick name used for people who are most likely to be found in exceptionally unexpected
situations or course of actions.
Mäkäräinen is usually shortened as "Maka".
Being "a Maka" often includes
spontaneous nudity.
There is also a phrase "Makan kakkaa" (Maka's shit) which origins and usage still remain unrevealed.