harbinger of terror

This is the shit that you have to hold in for whatever reason, but you can fuckin feel it get more powerful by the second as it builds up and waits for its moment to strike. And you know: any moment could be your last. You're searching for an adequate restroom just to wreak havoc. When you finally find it, you release a diarrhea octopus upon the world.

Holy fuck, I had to hold in this massive harbinger of terror all day. It was a mess when I finally could use the restroom.