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.
shit; excrement
something cool, e.g. 'That's the shiz' meaning 'That's awesome' or 'That's really cool'.