紐ひもパンツ

noun

string bikini; g-string; thong

Refers to underwear or swimwear with a thin string-like back, often exposing the buttocks. The term is a blend of 紐 (string) and パンツ (underwear/pants).

• 彼かの女じょはビーチで紐ひもパンツの水みず着ぎを着きていた。

  She was wearing a string bikini at the beach.

• 紐ひもパンツは下した着ぎのラインが出でにくいので人にん気きがある。

  Thongs are popular because they don't show panty lines.