To be so tired you start to act as if you were drunk. Also refered to as DT.
"Dude....did you ever know that your my hero?"
"Go to bed dude, you're so drunk tired."
Feeling drunk without drinking any alcohol. Cause by staying up late or simply being tired. Also a possible cause is low/high sugar levels.
Alex: Man, did you hear this Google employee stayed up until 5am yesterday and mass emailed his company complaining about Google+?
Steve: "Duh, he was obviously drunk-tired."
When you’re out of it from being tired and act like your drunk or high
Woah dude, I’m feelin a bit tired drunk
When a person is so tired that it fogs up their brain in a way that makes them act as though they are drunk.
Oh dear, I haven't gotten enough sleep and now I feel tired drunk. Maybe I should text my ex!