Any form of music, usually used to describe any usually overrated band/artist/genre described as "scene" or ending with the suffix "core," used as a negative connotation to indicate their mediocrity in musical complexity, originality, intelligence, talent, etc.
My Chemical Romance, Senses Fail, Circle Takes The Square, Silverstein, Atreyu, The Used, Hawthorne Heights, 90% of local New Jersey bands, and any bands that call themselves "hardcore" to avoid the connotation of the word "emo."
by b1lskirnir May 05, 2005
(from the word - mediocre) a form of music (specifically punk/hardcore punk) that is very simplistic and doesn't require very much talent to play. Often seen in MTV-"punk" bands.
It would be nice if the Medio-Core fans would quit considering themselves punk.
by dødsferd April 08, 2007