titter UK /ˈtɪtə(ɹ)/US /ˈtɪtɚ/noun 3verb 2forms 3 noun3 •A nervous or somewhat repressed giggle.April 21, 1811, Samuel Taylor Coleridge, Table Talk There was a titter of […] delight on his countenance. •[in the plural] (slang, vulgar) A woman's breast.Flesh Gordon 2 - I remember that this one was chock full of big titters. Many of them looked like the natural variety, as well. — 1995 •(slang, no longer used) A girl or young woman. verb2 •To laugh or giggle in a somewhat subdued or restrained way, as from nervousness or poorly-suppressed amusement.A group of tittering pages ran before. — 1863 •(no longer used) To teeter; to seesaw. formstittered · tittering · titters