I used to work for a company that made a product packaged mainly for border state customers. It was a smaller case pack that was usually one days worth of product since most users paid cash and only bought enough for that days jobs.
Among friends at the company, I referred to it as the Wetback Pack.
I would suggest that you keep that word out of FR forums. When flippantly used it confirms to your political opponents that conservatives are nothing but a bunch of racist bigots even if you're not.
Just my two cents...