ぺったんこ
pettanko

na-Adjective
no-Adjective

1. crushed flat; flattened; squashed; flat-topped

Onomatopoeia
空腹 くうふくでおなかがぺしゃんこだ。
kūfukude onakaga peshankoda.
My stomach is clenched with hunger.
Noun

2. flat-chested girl; flat chested girl

Colloquial
Manga Slang
Noun

3. sound of a sticky rice cake sticking to something

Onomatopoeia
Other forms: