"Acid Casualty" is a named applied to those who, post-LSD (just once, or lots of times) become sufficiently detached from the world they being acting different to the extent that they appear insane, or at least extremely eccentric to other people.
"Man, look at that topless old man climbing that lamp-post. I think he's got anti-war slogans on his back"
Used in kpop when someone knows all the members of a kpop group and likes all the tittle tracks but they wouldn't classify themselves as "stans" of that particular group
Dating with out the pressure of a serious relationship. Often times a vauge reference to a loose relationship, although it doesn't have to be a sexual relationship. Casual dating can be a confusing term.
Someone who will spend a couple of nights a week going to the notorious 6Th Street down in Austin, TX. They usually are in credit dept, a dwi or pi on their record, and are alcoholics. They consider the clubs and bars their second home.
I feel sorry for my sister. She spends all of my parent's money going to 6th Street. I get the feeling she will never grow out of it and just end up being a 6th Street Casualty.