パンツ一いっ丁ちょう

expression, noun

wearing only underpants; in just one's underwear

Describes a state of undress where someone is wearing only underpants, often used humorously or to emphasize minimal clothing.

• 彼かれはパンツ一いっ丁ちょうで部屋へやをうろうろしていた。

  He was wandering around the room in just his underpants.

• パンツ一いっ丁ちょうの姿すがたで玄げん関かんに出でてしまった。

  I accidentally went to the front door wearing only my underpants.