Definition of twittered:
(n) :
(uncountable) The sound of a succession of chirps as uttered by birds.
(n) :
(uncountable, electronics) Unwanted flicker that occurs in interlaced displays when the image contains vertical detail that approaches the horizontal resolution of the video format.
(n) :
(countable) A tremulous broken sound.
(n) :
(countable) A slight trembling of the nerves.
(n) :
(countable, informal or British, regional) Chiefly in the form in a twitter: a state of excitement or nervousness; a twit.
(v) :
(intransitive) To utter a succession of chirps.