ガーガー

ガーガー, がーがー, ガアガア, があがあgaagaa

adverb

  1. quacking
  2. cackling
  3. gaggling
  4. croaking
  5. squawking
  6. loudly (snore, complain, argue, etc.)
  7. noisily
  8. with a buzzing sound (e.g. speaker)

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences