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A cramp or stiffness in a muscle, especially of the upper leg, caused by injury or excessive exertion.
[Originally baseball slang, of unknown origin.]
(Medicine) informal US and Canadian muscle stiffness or cramp following strenuous athletic exercise
[C19: of uncertain origin]
char′ley horse`(ˈtʃɑr li)
a cramp or a sore muscle, esp. in the leg, resulting from overuse or strain.
[1885–90; orig. baseball slang]
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|Noun||1.||charley horse - a muscular cramp (especially in the thigh or calf) following vigorous exercise|
colloquialism - a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech