When a person is akin' wild. A play on the phrase "acting wild". When someone doesn't make sense or is acting uncontrollable. Usually when drunk..
Chris: "I'm soooo drunk help me!! I don't know where I live!" (Vomits on own show)
Mike: "Are you on the Akin's Diet right now man?!? Cuz; you akin' wild!!!"
When you have a case of sickness and everything you have taken in or are taking in via mouth, evacuates itself out your ass in a watery, muddy consistncey for a lengthy period of time.
'After eating that seafood I had a seriouscase of the Viral mud butt diet!'
Or
'I knew the flu was going around, and it hit me hard with a case of the Viral mud butt diet.'