the Oakland Raiders should flatten those Chumps like a Snicker bar in Warren Sapp’s back pocket.

This Sunday the San Diego Chargers have nothing to play for except pride. That is exactly why the Oakland Raiders should flatten those Chumps like a Snicker bar in Warren Sapp’s back pocket.

Just Blog Baby (JBB)
Just Blog Baby

flatten = beat evaluation-based

One of the main function of the metaphor seems to me that of introducing images. Here the image of fat Sapp and snicker in his back pocket, and what happen to it when he falls on his back is introduced.