An adjective describing a pair of people in which one person is high and the other is drunk. Often times when two good friends have opposing preferences between alcohol and weed they may choose to get "vaded" where the one who prefers alcohol drinks while the friend who prefers weed tokes.
"Hey man I'm thinking we get drunk."
"But I just bought all this weed!"
"Well I have a test coming up!"
"Hmmm, let's get vaded."