expression, noun which may take the genitive case particle 'no'
skin and bones; nothing but skin and bones
Describes a person or animal that is extremely thin, often from illness or malnutrition. Used as a set phrase, typically with の or in a predicative pattern like 骨と皮だ.
病気で彼は骨と皮になってしまった。
He became nothing but skin and bones because of his illness.
その捨て犬は骨と皮の状態だった。
The abandoned dog was in a skin-and-bones condition.