noun
wearing nothing but an apron
Colloquial term describing a state of undress where only an apron is worn, often with a playful or erotic connotation.
彼女が裸エプロンで料理している姿に驚いた。
I was surprised to see her cooking in nothing but an apron.
コスプレイベント
There was someone in a naked apron at the cosplay event.