ぺったんこ

na-adjective, noun which may take the genitive case particle 'no'

crushed flat; flattened; squashed

Describes something that has been completely flattened or squashed, often with a nuance of being beyond repair. Used as a na-adjective or no-adjective.

• 箱はこがぺったんこに潰つぶれた。

  The box was crushed flat.

• ぺったんこの帽ぼう子しをかぶっている。

  He's wearing a flat-topped hat.

noun

flat-chested girl

Colloquial and slang term, often used in manga or casual speech to refer to a girl or woman with a flat chest. Can be teasing or humorous.

• 彼かの女じょは自じ分ぶんをぺったんこだって気きにしてる。

  She's self-conscious about being flat-chested.

noun

sound of a sticky rice cake sticking

Mimetic word for the soft, sticky sound made when something like mochi adheres to a surface. Often used adverbially with と.

• 餅もちがぺったんこと杵きねにくっついた。

  The mochi stuck to the mallet with a soft thud.