The act of being intoxicated by any mind or body altering substance: alcohol
; and still being able to maintain your cool, as well as the ability to act and speak professional as if you were never intoxicated in the first place.
College RA: "Hey how's it going Michael?"
Michael: "Oh hey, it's going splendid man. I would love to stay and chat, but I need to go and study for my Calc final tomorrow. I bid you good day."
College RA: "Alright bye Michael"
Gustavo: "Woah man, how'd you do that Michael? You had like 5 shots in under two minutes, followed by 10 hits from the bong."
Michael: "Haha, I was in Charles Mode."