The distinct feeling you have when you're epically fucked up. This feeling can be achieved by drinking the perfect amount of Rolling Rock, smoking the perfect amount of weed, or smoking after you drink. For one to be gloriant, one must be triumphant AND wise. You can also be gloriant when you're having the feeling that you're a military sergeant or a general. This word should always be used after you pee on a house.
"Dude, I feel like a sergeant right now."
"Dude, I just peed on the neighbors front porch. I'm so gloriant right now."