a call of nature

call of nature

The urge to urinate or defecate. Jim is off answering the call of nature. Wait a minute, I have to go answer the call of nature.
See also: call, nature, of
Farlex Dictionary of Idioms.

a call of ˈnature

(humorous) a need to go to the toilet: He left the meeting to answer a call of nature.
See also: call, nature, of
Farlex Partner Idioms Dictionary
See also:
  • call of nature
  • answer the call of nature
  • nature
  • nature’s call
  • nature's call
  • Can I have (one) call you?
  • Could I have call you?
  • answer the call
  • marker
  • call in (one's) marker