A fork of Rural Dictionary
Short for "Tindal Centre", a centre for the treatment of mental illnesses. The word "tin" is used to describe someone when they have got something wrong or have committed an act of stupidity.
Fred: Oh my god, Gerald is such a tin. Edgar: Why? What did he do this time? Fred: Today in lunch he ran into a wall when he was chasing after the football... Edgar: What a tin act.