The Unhealthy Four
Master Shake used to be a McDonalds cup. He must've fell into a pit of necleur acid because he has basic knowledge (Porn, Sports, Lesbians, etc.) As soon as being discovered by Ronald McDonald, he was given even more basic knowledge (Sex).
Months later Master Shake and Ronald McDonald managed to get The Burger King and Hungry Pumpkin to team up with them. They caused many deaths. The deaths were usually diabetes, high blood pressure, or heart problems.
A doctor, however, was able to nullify Shake, causing Shake to revert to that "porn-sports-lesbians" mentality. Nothing was remembered after that. You can watch an anime version of that by dialing 555-5555 on the phone.
Aqua Teen Hunger Force
Shake was wandering around until a talking pack of fries discovered him, and the two would later discover Meatwad and become the Aqua Teens. As an Aqua Teen, he always does stupid things, watches ecchi with Carl, and taking his frustration out on Meatwad.