also: はなぺちゃ
noun, na-adjective, noun which may take the genitive case particle 'no'
small flat nose; pug nose
Describes a nose that is small and flat, often with a cute or childlike connotation. Can be used as a noun or adjectivally (e.g., 鼻ペチャな人).
彼女は鼻ペチャな顔がチャームポイントだ。
Her small flat nose is her charming feature.
その犬は鼻ペチャでとても可愛い。
That dog has a pug nose and is very cute.
団子鼻 refers to a round, bulbous nose, while 鼻ペチャ emphasizes flatness and smallness.
Compound of 鼻 (nose) and ペチャ (onomatopoeic for flatness). The exact origin of ペチャ is uncertain, but it likely mimics a squashed or flattened shape.