Throwaway comment on the internet, usually on sensitive topics that the poster has not invested the necessary time, resources, or even just consideration in actually understanding.
Combines Trump, Post, and Compost.
"Why did he post that on Twitter? It's offensive to Mexicans and it makes him look like an idiot."
"Did you read it?"
"Yeah, I read it."
"Then the Trumpost did it's job. "
The jokes on the back of the chocolate milk box that your school gives you that makes you want to shoot yourself. They usually consist of corny jokes relating to cows and milk. For ex: Question: Where did the cow go for entertainment?