'Titty' definitions:

Definition of 'titty'

(from WordNet)
noun
Either of two soft fleshy milk-secreting glandular organs on the chest of a woman [syn: breast, bosom, knocker, boob, tit, titty]

Definition of 'Titty'

From: GCIDE
  • Titty \Tit"ty\, n. A little teat; a nipple. [Familiar] [1913 Webster]