Top Definition
a "brain itch" is when you have recently listened to a repetitive song, and have it memorized a part of that certain song so much that it gets stuck in your head for about an hour or so, depending on that person.
who you fitt'n to try.who you fitt'n to try?... great now i have a Brain Itch... stupid song...
by murderous-intent February 24, 2011

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