Tony: Fuck that girl, bro, she's T-rash!!
Trash refers to going out and getting slaughtered, consuming mind altering substances; anything from alcohol to illicit substances. It means you dance until your feet bleed, and for guys too take there tops off after, you stomp and you smack on the walls. You loose things, you forget that you can have a conversation with out screaming and you generally embaress yourself.
It is not uncommon when trashed that you would get into a fight, consume more substances too get you more trashed, pick up a random. Friends often encourage and support the trash. They embrace there trasher friends and join them.
2 am tops off.