'Chitter' definitions:

Definition of 'chitter'

(from WordNet)
verb
Make high-pitched sounds, as of birds [syn: chitter, twitter]

Definition of 'Chitter'

From: GCIDE
  • Chitter \Chit"ter\, v. i. [Cf. Chatter.]
  • 1. To chirp in a tremulous manner, as a bird. [Obs.] --Chaucer. [1913 Webster]
  • 2. To shiver or chatter with cold. [Scot.] --Burns. [1913 Webster]