A sudden, overwhelming urge to poop when there is no convenient bathroom. Poomergencies are known to occur frequently in shopping malls, while driving in the car, and at work.
I had the worst poomergency while walking my dog yesterday. I had to run into a random corner bar to use the facilities.
Someone who is into poo politics, or generally amused by humourous poo jokes. Can also be someone that dislikes poop.
John: "I think that the invasion of Poland by Nazi-Germany was wrong and utterly disgusting."
Poomer: "yes poopoo peepee sex big money yes?"
Anthony: "I am severely against authoritarian rule, I believe progressive states will succeed no matter the circumstance."
Poomer: "I don't like poop."