do (one's) business

To urinate or defecate, especially a house pet. I hate standing out here in the cold, waiting for the dog to do his business.

Name	Pronounced	Usage
Darrel	DER-əl, DAR-əl	English
Ptah	PTAH, PTAHKH	Egyptian Mythology
Patricie	-	Czech
Lyra	LIE-rə (English), LEE-rə (English)	Astronomy
Muhammet	-	Turkish
Ambrogio	-	Italian