(1):

(superl.) Bought at the festival of St. Audrey.

(2):

(n.) A necklace of a rural fashion, bought at St. Audrey's fair; hence, a necklace in general.

(3):

(superl.) Very fine and showy in colors, without taste or elegance; having an excess of showy ornaments without grace; cheap and gaudy; as, a tawdry dress; tawdry feathers; tawdry colors.