“Flat chest” in Japanese
Short answer
Flat chest in Japanese is “ペチャパイ” (pechapai). Full meaning: flat chest, small breasts.
Other ways to say “Flat chest” in Japanese
まな板
manaita chopping board, cutting board; flat chest, tiny breasts
無乳
munyuu agalactia, lactation failure; flat chest, absence of breasts
マナ板
manaita chopping board, cutting board; flat chest, tiny breasts
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