尿遁

niàodùn
(slang) pretext of needing to urinate (used to slip away to avoid having to do sth)

CEDICT

slang

Entry Composition

1 尿 niào
  1. to urinate
  2. urine

classifier: 泡
=2 遁 dùn
  1. to evade
  2. to flee
  3. to escape
=2 遁 dùn variant of 遁 dùn