when you drink so much that you start "crunken" forgetting what happened, what you did, what you saw.
drinking to the point of utter stupidity.
mark: saturday night guys, my place, beer pong, lets get crunken drunk.
devon: yeah sounds good. fuck the sac next week.
tushar: did you guys see me last night? i cant remember anything i was so crunken drunk. i woke up with shaveen, fuck im so stupid.
kieran: bahahahah what a bitch.