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A combination of grit and passion, especially in baseball. Characterized by performing well in stressful, clutch situations.
"As for this game, the Mets' ... defense tried to give the game away at the end but they just had too much collective grit and passion -- grission, I call it -- to let this one slip through their leaden hands."

From "Amazin' Avenue", May 6, 2009.
by gabjoh May 06, 2009
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