Funk Fist: The 32nd Legend of Seesaw (2009)

Seesaw is a daydreaming fish delivery boy, with high ambitions to be the greatest Kung Fu master of all times. His dreams are put to the test when confronted by the evil Chang Family, who run the local Chinese Mafia, while out delivering fish. They beat him up, play Funk Fist and make fun of his Momma. Seesaw seeks the ultimate revenge, and convinces a Kung Fu master to teach him the ancient art of Kung Fu, and the dreaded "Yo Momma" joke.