charley-horse

English Thesaurus

1. a muscular cramp (especially in the thigh or calf) following vigorous exercise (noun.state)

hypernym	:	cramp, muscle spasm, spasm,
definition	:	a painful and involuntary muscular contraction (noun.state)

domain usage	:	colloquialism,
definition	:	a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech (noun.communication)