Nel is a very popular slang word in Mexico that means "no," but in a much more casual and informal way, like saying "nah" or "nope" in English.
In this song, which is even titled "NEL," the singer uses it repeatedly to brush someone off. He sings "Hoy pensé en salir a buscarte, pero nel" (Today I thought about going to look for you, but nah), perfectly capturing a cool, dismissive attitude and making it a key part of the song's catchy hook.
Ever thought about texting your ex, only to stop yourself at the last second? That is the exact mood in NEL by Fuerza Regida. The title itself comes from the Mexican slang word nel, which is a quick, casual way to say "nope" or "nah." He sings, "Hoy pensé en salir a buscarte, pero nel / Llamarte, pero nel" ("Today I thought about going to look for you, but nope / Calling you, but nope"). Instead of fixing an old romance, he distracts himself with wild parties, hotel rooms, and luxury brands like Cartier, Chanel, and Prada.
Even though he admits he is still hooked on someone ("Baby, es que me perdí en tus ojos" / "Baby, it's just that I got lost in your eyes"), he drowns out the feeling with drinks and wild nights. He mixes "Whiskey y tequila, y que no falte la de coco" ("Whiskey and tequila, and don't forget the coconut-flavored drink") while hanging out with party girls he calls an "aferrafter" (someone obsessed with after-parties) and bragging about buying a "Jeepeta" (slang for a big Jeep or SUV). It is a blunt, fast-paced corrido tumbado about choosing chaos, cash, and luxury over old feelings.