The state of mind attained by an individual after consuming copious amounts of alcohol and/or marijuana.
John: Did you see Stefan last night after he played 6 games of Snappa and then smoked that blunt to his face?!
Jane: Yeah, he was super fadeskis!!
Jill: What are your plans for this weekend?
Jack: I'm headed up to Isla Vista this weekend; bout to get fadeskis!!