nature’s call

and call of nature

n. the feeling of a need to go to the toilet. I think I feel nature’s call coming on.

Name	Pronounced	Usage
Isis	['aisis]
Braam	BRAHM	Dutch, Limburgish
Zephaniah	ze-fə-NIE-ə (English)	Biblical
Ling	-	Chinese
Desta	-	Eastern African, Amharic
Curry	['kə:ri]