What a person encounters when they have to take a shit. Poop chills can be defined as the raising of arm hair, feeling hot and cold at the same time, feeling clammy, feeling sweaty, and the puckering of the anus in anticipation of shitting. Poop chills will usally continue until the person has relieved the load, where the feeling of relief will wash over them.
Guy 1: I think I'm getting poop chills *clenches jaw and squeezes legs*
Guy 2: Getting what?
Guy 1: You know, that feeling you get when you have to take a massive shit?
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.