Dineral is a colloquial and emphatic way to say "a lot of money" or "a fortune" in Spanish. It's more vivid and impactful than just saying "mucho dinero."
In this song, the artist uses dineral to highlight his success and the significant wealth he has accumulated through his business ventures. It's a central theme, even appearing in the song's title and as a nickname, emphasizing the pursuit and achievement of financial prosperity.
This is a corrido about running a business, and the business is clothing. Jasson Arellano sings it for a friend from Modesto nicknamed Dineral, the man behind the ByDineral label, and he keeps score in shipments: "Los aviones llenos van de ropita y gorras ByDineral" (The planes go out full of ByDineral clothes and caps). The origin story takes two lines. "Desde los quince cambié mi mentalidad" (At fifteen I changed my mindset), then "De la escuela me brinqué pa'l comercio" (I skipped school and jumped into business), and everything after that is Modesto, the 209, and orders that keep arriving.
What makes it worth a listen is how quiet it is about the money. There is no flexing, just "Las cuentas hablan, nosotros discretos" (The numbers do the talking, we stay discreet) and a boast about being invisible: "En mi perfil mi rostro siempre ausente" (On my profile my face is always missing), "Tal vez por eso aquí sigo vigente" (Maybe that's why I'm still relevant here). Arellano drops his own name mid-song to send the greeting home, which is standard corrido etiquette and still a little funny when the subject of the song is a hat company.