When you go to take a turd and you squirt fluid from your anal passage. Sometimes you suffer a deep burning of the anus.
Mitch - "man that was a big night of drinking"
Marty - "yeah i just went to take a after grog bog and it was like i was pissing out of my ass"
Mitch - "wrank....anal piss"
Marty - "it burnt real bad"
Mitch - "i wish Justin Timberlake would anal piss on me"
Marty - "fag"