I GOTTA TAKE A SHIT
A proclamation that holds some urgency, thereby allowing you to quickly get out of a situation. It also lets the individual that the proclamation is stated to know that you won't be back anytime soon.
Example:
Florence: Have you seen my pictures from our vacation? We took something like 500 pictures.
Ethel: I GOTTA TAKE A SHIT!!!!!
Florence: Well then I guess maybe next time.
Florence: Have you seen my pictures from our vacation? We took something like 500 pictures.
Ethel: I GOTTA TAKE A SHIT!!!!!
Florence: Well then I guess maybe next time.