褌ふんどし一ひとつ

expression, noun

wearing only a loincloth; nothing but a loincloth

Often used in the pattern 〜で, 〜の, or 〜になり to describe a state of undress where someone is wearing nothing except a traditional Japanese loincloth (fundoshi).

See also: パンツ一丁 · ふんどし一丁 (ふんどしいっちょう)

• 彼かれは褌ふんどし一ひとつで川かわに飛とび込こんだ。

  He jumped into the river wearing nothing but a loincloth.

• 祭まつりでは、男おとこたちが褌ふんどし一ひとつの姿すがたで神輿みこしを担かつぐ。

  At the festival, the men carry the portable shrine dressed only in loincloths.