Definition of ワイワイ
ワイワイ
waiwai
Common word
adverb
1.
noisily, clamorously, boisterously(onomatopia)
2.
incessantly (complaining, pestering, etc.), going on and on, making a fuss (of something), playing up(onomatopia)
3.
loudly (crying), wailing, bawling, howling(onomatopia)
Other readings:
わいわい