twitterer

intransitive verb

1. to make a series of light, sharp, intermittent vocal sounds; chirp continuously or tremulously, as birds do
2. 1. to talk in a rapid, tremulous manner expressive of agitation, timidity, etc.; chatter
   2. to giggle or titter
3. to tremble with excitement, eagerness, etc.

transitive verb

noun

1. a light, sharp, intermittent vocal sound of a bird; chirping
2. any similar sound
3. a condition of trembling excitement; flutter