Flaquito is the diminutive form of flaco, meaning "skinny" or "thin". While it literally means "skinny one", in Mexican slang and particularly in narcocorridos like this song, it's often used as a nickname or a term of endearment, even for powerful figures.
In "La Firma Del Flaquito", it refers to a notorious cartel leader, Arellano, who is known by this alias. The use of a seemingly innocent diminutive for such a formidable character creates an interesting contrast and adds a layer of intrigue to the song's narrative.
Get ready to dive into the world of "La Firma Del Flaquito" by Los Tucanes de Tijuana! This song introduces us to a powerful figure known as "El Flaquito" (The Skinny One), whose banner is Arellano. From the young age of thirteen, he was already a "bélico el plebito" [a warlike kid].
Now, he's a force to be reckoned with, escorted by soldiers, federales, and estatales who are all part of his team. He commands thirty fighting groups, operating in government attire and bulletproof cars, patrolling and watching over his territory. If you don't pay up, "se les aparece el diablo" [the devil appears to them]! The song makes it clear that "nada pasa por Tijuana sin la firma del flaquito" [nothing happens in Tijuana without the skinny one's signature], emphasizing his absolute control over the city. It's a pretty intense look into the world of cartels, with mentions of new routes, partners, and clients, but also the harsh reality for anyone who turns "sapo" [a snitch]: "Matarile, ya no hay de otra" [Kill him, there's no other way]. It's a bold and direct song that doesn't shy away from its subject matter.