nipple hair; breast hair
Colloquial term for hair growing on or around the nipple or areola. Often used in casual conversation or online discussions.
彼は乳毛を剃るのが面倒だと言っている。
He says shaving his nipple hair is a hassle.
ネットで乳毛の処理方法を調べた。
I looked up ways to deal with nipple hair online.
Compound of 乳 (ちち, 'breast, milk') and 毛 (け, 'hair'), with rendaku voicing of 毛 to げ. The reading ちちげ is a straightforward combination of these elements.