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Verb:
A brutal full frontal attack of one's nether region, where the attacker uses his/hers best kicking foot and precisely aims to evade the scrotum by curling the toes, thereby delivering a crippling and demoralizing blow causing a searing pain to the wormlike grundle region.
While playing in a coed soccer match, that cunt jessica grundle jammed me, leaving me crippled and demoralized at midfield.
by bigbuckchicken December 01, 2007
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