I used to work as a dairy herdsman on a dairy ranch in Tulare, California. As most of the milkers were Mexicans, and would meet the definition today of being illegals, the language around the milking barn was of truly “barnyard” variety.
A most useful phrase was, “chinga tu madre pinche pendejo!”.
You didn’t get into any fights for that?
I guess they have a really good sense of humor.