noun
dirt under the nails; grime under fingernails
Refers to the dirt or grime that accumulates under fingernails. A common, everyday word.
爪糞がたまっているから、爪を切ってきれいにしよう。
There's dirt under my nails, so I'll trim my nails and clean them.
子供の爪糞を取ってあげた。
I cleaned the dirt from under my child's nails.