Piss

Piss is a nickname given to urine. Piss is ejected from the bladder when you go to the bathroom.

History
Way back in the year 2, some guy drank water and suddenly wondered why his bladder felt weird. He died, because he didn't know how to piss. Luckily, everyone after him now knew how to piss.

$7
The term piss is also associated with the phrase Moisture is the Essence of Wetness. This phrase has been visualized as some crazy dude taking a piss on a furry or something. Some time in January, a member of the Fig Newtons Anonymous YouTube channel used super chat on a stream from Dead By Daylight YouTuber PainReliever. They spent $7 for him to read the message "Moisture is the Essence of Wetness." He was in the game and didn't read the message. The sender did not get their $7 back.

Trivia

 * Piss appears in one of Kano's intros in Mortal Kombat 11.
 * Piss is one of the two fluids released from the male genitalia.
 * The other being blood.