Synopsis by Mark Deming
Homer Simpson (voice of Dan Castellaneta) develops a sudden curiosity about his middle name -- while he knows it starts with the initial J, he doesn't know what it stands for. His father, Grandpa Simpson (also voiced by Castellaneta), doesn't know either, but suggests that a visit to the farm where Homer's mom lived with a hippie commune after leaving him might hold the answers. After finding a mural painted by his mother which reveals his middle name is "Jay," Homer becomes infatuated with the hippie scene that once flourished there, and seeks the friendship of Seth (voice of Martin Mull) and Munchie (voice of George Carlin), former commune members who now run a vegetable farm and juice company on the grounds. Homer chides Seth and Munchie for their current embrace of capitalism, and urges them to join him for a day of "freaking out squares," but when he accidentally wrecks their juice works, the aging longhairs turn their back on him. Despite the encouragement of his son Bart (voice of Nancy Cartwright), who tells him "You make a great hippie . . . you're lazy and self-righteous and the soles of your feet are jet-black," Homer decides he needs to patch things up with Seth and Munchie if he wants to continue his countercultural lifestyle. Hoping to surprise his new friends, Homer harvests the crops in the Back Forty and sends them though their juicing machinery, unaware that he's just shipped out a batch of drinks made from psychoactive plants. "D'Oh-in' In The Wind" first aired on November 15, 1998, and features special end-credit music from acclaimed alternative rock band Yo La Tengo.