Source : Webster's Revised Unabridged Dictionary (1913)

Tatty \Tat"ty\, n.; pl. {Tatties}. [Hind. [.t]a[.t][.t][imac].]
   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. [India]

Source : WordNet®

tatty
     adj 1: showing signs of wear and tear; "a ratty old overcoat";
            "shabby furniture"; "an old house with dirty windows
            and tatty curtains" [syn: {moth-eaten}, {ratty}, {shabby}]
     2: tastelessly showy; "a flash car"; "a flashy ring"; "garish
        colors"; "a gaudy costume"; "loud sport shirts"; "a
        meretricious yet stylish book"; "tawdry ornaments" [syn: {brassy},
         {cheap}, {flash}, {flashy}, {garish}, {gaudy}, {gimcrack},
         {loud}, {meretricious}, {tacky}, {tawdry}, {trashy}]
     [also: {tattiest}, {tattier}]