Top Definition
A portmanteau word combining "main" and "character." It usually refers to the main character of a video game, especially one who is nameable.
My Dragon Quest IX mainch is a barbarian.
Why is the mainch in Devil Survivor wearing long sleeves in the middle of summer?
#portmanteau #main character #video game character #video games #hero #protagonist
by redmoonbringer April 11, 2011
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