Party Horse
- Episode aired Mar 19, 2015
- TV-PG
- 11m
After a horse, with a love of partying, crash-lands on Earth, Mordecai and Rigby learn that he has to pass his U.S. History exam, or else he can never party again.After a horse, with a love of partying, crash-lands on Earth, Mordecai and Rigby learn that he has to pass his U.S. History exam, or else he can never party again.After a horse, with a love of partying, crash-lands on Earth, Mordecai and Rigby learn that he has to pass his U.S. History exam, or else he can never party again.