That Guy-ism
a disorder when you get so drunk...like drunk to the point of no return and you start doing/saying outlandish and ignorant things, mostly in a public setting. People look at you and they are blessed not to be you. You soon become a model of how not to live your life. You are the laughing stock of the bar or party, but more importantly, you are inevitably, “that guy.”
Damn bro I was busted up at the party last night, but Jason had a case of that guy-ism. He threw a punch at Eric, cussed out a chick and pissed our loveseat.