A game consisting of a group of guys circle jerking onto a muffin which is located in the center of said circle jerk. Players compete by jerking their member until they ejaculate their "frosting" on the muffin. The last jerker to frost the muffin receives the pleasure of eating said muffin, along with all its frosty goodness.
Tom: I'm bored
Kyle: I have an idea! lets play muffin!!!