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1.
When a professional athlete, usually a quarterback; after doing well commonly including playoff victories will completely FUCK UP during the next few seasons.
Bob: damn, Rex was so good up until the superbowl, now he's some straight up trash. What happened?

Steve: He caught the Rex Grossman disease
by ooberman October 13, 2008

Words related to Rex Grossman Disease

disease grossman playoffs qb quarterback rex sucks