"El Gordo Paz" is a classic narco-corrido: a story song about one dangerous man, told like a warning to anyone standing nearby. It opens with real advice: if you hear "sonar un cuerno" (a horn sounding), get out of there. In Mexican slang a cuerno (short for cuerno de chivo, "goat's horn") is an AK-47, named for its curved magazine, so the "horn" is gunfire. "Ponle tierra de por medio" (put ground between you) is a great idiom for "run far away".
The Gordo looks calm, but "le han alterado la sangre" (they've stirred up his blood), maybe over "un trato mal hecho" (a deal gone wrong). He takes down several men and shouts "¡Los espero en el infierno!" (I'll wait for you in hell!). Then the police hunt him "por mar y tierra" (by sea and land), and he vanishes: "se les volvió ojo de hormiga" (he turned into an ant's eye on them), a funny Mexican way of saying he disappeared. An amparo federal is a legal injunction, and he walks into the prosecutor's office with one, insisting "No soy pistolero a sueldo" (I'm no hired gun). His last word is pure corrido swagger: he respects only God, his parents and the government, and if the devil betrays him, he'll chase him down in hell too.