/ ˈtwɪtə(r); NAmE / verb , noun
■ verb
1.
[ v ] when birds twitter , they make a series of short high sounds
2.
[ v , v speech ] twitter (on) (about sth) ( especially BrE ) to talk quickly in a high excited voice, especially about sth that is not very important
■ noun [ sing. ]
1.
(also twit·tering ) a series of short high sounds that birds make
2.
( informal ) a state of nervous excitement
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WORD ORIGIN
late Middle English (as a verb): imitative.