The Collaborative International Dictionary of English v.0.48:

Gaudy \Gaud"y\, a. [Compar. Gaudier; superl. Gauidiest.]
   1. Ostentatiously fine; showy; gay, but tawdry or
      meretricious.
      [1913 Webster]

            Costly thy habit as thy purse can buy,
            But not expressed in fancy; rich, not gaudy. --Shak.
      [1913 Webster]

   2. Gay; merry; festal. --Tennyson.
      [1913 Webster]

            Let's have one other gaudy night.     --Shak.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gaudy \Gaud"y\, n.; pl. Gaudies [See Gaud, n.]
   One of the large beads in the rosary at which the paternoster
   is recited. [Obs.] --Gower.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gaudy \Gaud"y\, n.
   A feast or festival; -- called also gaud-day and gaudy
   day. [Oxford Univ.] --Conybeare.
   [1913 Webster]

WordNet (r) 3.0 (2006):

gaudy
    adj 1: 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,
           tatty, tawdry, trashy]
    2: (used especially of clothes) marked by conspicuous display
       [syn: flashy, gaudy, jazzy, showy, sporty]
    n 1: (Britain) a celebratory reunion feast or entertainment held
         a college