also: たからけ
noun
lucky white body hair
Colloquial term for a single, unusually long white or translucent body hair, often considered a good-luck charm in Japanese folklore.
腕に宝毛を見つけて、なんだか嬉しくなった。
I found a lucky white hair on my arm and felt strangely happy.
宝毛は抜かずにそのままにしておくといいらしい。
They say you should leave a lucky white hair alone and not pluck it.
Compound of 宝 (takara, 'treasure') and 毛 (ke, 'hair'), reflecting the folk belief that such hairs bring good fortune.