Definition of chirps:
(v) :
(intransitive) To make a short, sharp, cheerful note, as of small birds or crickets; to chitter; to twitter.
(n) :
A short, sharp or high note or noise, as of a bird or insect.
(v) :
(intransitive) To speak in a high-pitched staccato.
(v) :
(Canada) To speak rapid insulting comical banter back and forth; to bicker or argue.
(n) :
(radar, sonar, radio telescopy etc.) A pulse of signal whose frequency sweeps through a band of frequencies for the duration of the pulse; the quality of having a such a variation in frequency.
(v) :
(transitive, radar, sonar, radio telescopy etc.) To modify (a pulse of signal) so that it sweeps through a band of frequencies throughout its duration.