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1.
combining the verb "to chutch", or to masturbate while weeping, with a "touchdown".

IE, a chutchdown is a touchdown scored during a particularly emotional or crucial part of the game, resulting in a key paradigm shift of the game's flow. the score is so sweet that it is worth masturbating over, but occurs at such an emotional time that the masturbator weeps. hence, "chutching" during a touuchdown.
Raghib Ismail's first kick off return for a score vs. Michigan in 1990 was one of the best chutchdowns in human history.
by Rocket Chutchdown August 16, 2011
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