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"Yo Momma" drops the verbal gloves and ups the ante on trash-talking by making a competition of it. Host Wilmer Valderrama scours an inner-city neighborhood for the most original and skilled free-form trash-talkers, who take part in street-corner-style verbal battles based on the use of "yo momma" jokes. The sharpest ones to emerge eventually go head to head in a war of words... Wikipedia