When you havent had anything to drink, but you're acting in a way that makes you look completely smashed. When a girl, typically named Ttephanie is completely sober, but is acting so ridiculous that her friends say she's Sober Drunk.
friend: Ttephanie, Why are you dancing on that table? You havent had anything to drink!
Ttephanie: I'm Sober Drunk!!
when someone has had no alcohol to drink but they act like they drank wayyy too much
billy was going crazy at the party last night, but he didn't drink anything! what a sober drunk.
when you have drank so much being drunk is sober and sober is being drunk
stop drinking cold turkey after drinking everyday for a long time and you will be soberdrunk