1. 不整洁的;邋遢的;破烂的
    If you describe something as tatty, you think it is untidy, rather dirty, and looks as if it has not been cared for.

1. tastelessly showy

    e.g. a flash car
           a flashy ring
           garish colors
           a gaudy costume
           loud sport shirts
           a meretricious yet stylish book
           tawdry ornaments

    Synonym: brassycheapflashflashygarishgaudygimcrackloudmeretricioustackytawdrytrashy

2. showing signs of wear and tear

    e.g. a ratty old overcoat
           shabby furniture
           an old house with dirty windows and tatty curtains

    Synonym: moth-eatenrattyshabby