also: ぴいちくぱあちく
tweeting; chirping
Onomatopoeic word for the sound of birds tweeting or chirping, often used in casual contexts.
Since morning, the little birds have been chirping away.
chattering noisily
Describes people talking noisily and incessantly, like birds chirping. Colloquial and often carries a slightly negative or humorous tone.
The high school girls are chattering away noisily.