一絲不掛

一丝不挂
yīsībùguà
  1. not wearing one thread (idiom); absolutely naked
  2. without a stitch of clothing
  3. in one's birthday suit

CEDICT

to be stark naked

Wiktionary

  1. 赤身裸露。宋．楊萬里〈清曉洪澤放閘四絕句〉四首之一：「放閘老兵殊耐冷，一絲不掛下冰灘。」亦泛指無所牽累，不為塵俗所牽累。宋．蘇軾〈贈虔州慈雲寺鑒老〉詩：「遍界難藏真薄相，一絲不掛且逢場。」也作「寸絲不挂」、「寸絲不掛」。
  2. 釣桿上一條釣絲都不掛。

重編國語辭典

  1. 泛指無所牽累，不為塵俗所牽累
  2. 赤身裸露

維基詞典

Entry Composition

1 一絲 yīsī a tiny bit
2 不 bù
  1. no; not so
  2. (bound form) not; un-
3 掛 guà
  1. to hang; to suspend (from a hook etc)
  2. to hang up (the phone)
  3. (of a line) to be dead
  4. to be worried; to be concerned
  5. (dialect) to make a phone call
  6. to register (at a hospital); to make an appointment (with a doctor)
  7. (slang) to kill; to die; to be finished; to fail (an exam)
  8. classifier for sets or clusters of objects