借水遁 [－－－]

Jyutping ze3 seoi2 deon6
Pinyin jiè shuǐ dùn

Definitions (CC-CANTO)
  1. use water as cover to escape, a term which is mostly used in Chinese martial arts fiction
Definitions (粵典–words.hk)
  1. 動詞
    扮​（​要​）​去​廁所​，​以此​為​藉口​逃避​；​有​時亦會​用​同樣​都​係​液​態​嘅​「​水​」​婉轉​代替​「​尿​」
    to escape from a situation by pretending to (need to) go to the toilet
  2. 參看
    借尿遁