When a man shits into the mouth of another man and forces him to eat it. This is usually done slowly and the "Magmortifer" (the man eating the shit) chews it while the "Magmortifier" watches.
Also known as a person who thinks alot, though they are more commonly called a Concept Ninja.
Man 1: Let's perform Magmortified!
Man 2: Yeah!!
*Man 1 pulls down pants and shits in mouth*