The bodily urge to urinate or defecate.
The removal of digested waste: defecation; defecation induced by laxatives.
Vomiting; vomiting induced by purgatives.
A removal of undesirable people.
The cleansing of a device by flushing it with water, steam, or some other liquid or gas.
The removal of excess humors through bloodletting, induced vomitting, etc.