The feeling of having an enormous butt shoved down your urethra, and then defecating, resulting in a painful, burning sensation. Symptoms involve two large bulges in the shaft of the penis, and a brown slime seeping out of the penis hole.
Friend: Dude! You've got a huge penis and brown dick sludge is dripping everywhere!
You: Yeah man, I've got g pepsi. It hurts :(