eliminate urine
"Again, the cat had made on the expensive rug"
To urinate.
"He quickly stepped aside to piss before entering the bathroom."
Expresses anger, disappointment or dissatisfaction.
"After hearing that his team had lost again, he let out a loud sigh and muttered that he was really pissed about the referee's call."
The word "piss" comes from Middle English and likely originated as an onomatopoeic imitation of the sound made during urination. It replaced the older Germanic term for excreting urine that was previously used in English.