Twit·ter, v. i. [imp. & p. p. Twittered p. pr. & vb. n. Twittering.]
1. To make a succession of small, tremulous, intermitted noises.
The swallow twittering from the straw-built shed. --Gray.
2. To make the sound of a half-suppressed laugh; to titter; to giggle.
3. To have a slight trembling of the nerves; to be excited or agitated.