noun: The feeling of being stuck in a drunken state between sober and blackout drunk. Lasts for an undetermined amount of time, and it feels like you can't fully get to one state or the other without a total commitment.
"No matter how hard I tried last night, I couldn't get completely hammered. I was stuck in blurgatory all night!"
"Dude, you lack commitment and faith in getting wasted, that's why."