Used in polite circles when you are out on the lash need to go home for a poo. Best used with embellishment.
Brad: Sorry lads but I have got to go home and let the dogs out.
Angelina: I thought so, they have been barking all afternoon.
Brad: Yeah, if I don't go now there will be horrible mess.
The best Danganronpafanfiction ever. A pissfic written by Archive of Our Own user taitofan featuring Ouma Kokichi with various other characters from the game.
Person 1 : dude i just read let it all out
Person 2 : the dr piss??
Person 1 : DUDE YES IM SCARRED FOR LIFE