Also read:

わいわい (Waiwai) is a Japanese adverb meaning “noisily, clamorously, boisterously, incessantly (complaining, pestering, etc.)”.

Meanings

  1. adverbnoisily; clamorously; boisterously
  2. adverbincessantly (complaining, pestering, etc.); going on and on; making a fuss (of something); playing up
  3. adverbloudly (crying); wailing; bawling; howling