trashed. wasted. sloshed. toasted. fucked-up. done.
as in, the person is literally scratched off "the list"; they are no longer all there.
(girl passed out on the couch)
guy 1: "how much did that chick have to drink?"
guy 2: "she's been on that absolut all night... she's fucking scratched out dude."
To curse out or put in one's place
Yo, I heard Monique scratched out that Bitch yesterday for talking shit about her!
Thinking about something really hard but couldn’t figure it out
To solve this problem one needs to scratch one’s brains out.