Mr. Meaty was taken off the air after a period of petitions. It ran for the first season on Nickelodeon, then it aired its second and final season on Nicktoons Network until eventually cancelled. There were rumors for it to be revived on Adult Swim but no plans have been made. To sign a petition to bring it back go here,
☀http://www.thepetitionsite.com/762/390/061/bring-back-mr-meaty/?z00m=22847457&redirectID=1644283415