A mat or screen of fibers, as of the kuskus grass, hung at a door or window and kept wet to moisten and cool the air as it enters
showing signs of wear and tear; "a ratty old overcoat"; "shabby furniture"; "an old house with dirty windows and tatty curtains"
If you describe something as tatty, you think it is untidy, rather dirty, and looks as if it has not been cared for. a very tatty old bathrobe. = scruffy. in bad condition = shabby (tat (19-20 centuries))
tastelessly showy; "a flash car"; "a flashy ring"; "garish colors"; "a gaudy costume"; "loud sport shirts"; "a meretricious yet stylish book"; "tawdry ornaments"