Translation

pipapipa means "Pipa Pipa" in English.
It's a katakanization, a loan-word.

pipapipa is normally written with katakana, as ピパピパ.
pipapipa written with hiragana is ぴぱぴぱ.
pipapipa does not have kanji.
Romaji pi pa pi pa
Katakana
Hiragana

Synonyms

Scientific name: Pipa pipa.

Further Reading