ペチャパイ

ペチャパイ, ぺちゃぱい, ぺちゃパイpechapai

noun

  1. flat chest
  2. small breasts

Study it in Yanamino

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