Indomable translates to "untamable" or "unconquerable." It's a striking adjective that immediately evokes a sense of wildness and fierce independence.
In the song, the artist uses it to describe the woman he's singing about: "Mujer indomable, te veo in the week" (Untamable woman, I see you in the week). This word perfectly captures her spirit, suggesting she's not easily controlled or swayed, and it makes her character intriguing and memorable.
This is a song about a woman who is done being played. The hook spells it out: "Se cansó de tanto cuento" (she got tired of so many stories), people "jugaron con su corazón" (played with her heart), so now she is "dándose valor" (valuing herself) and not wasting her time.
The chorus is where DrefQuila gets cheeky. "Ella busca alguien que pueda domarla" (she is looking for someone who can tame her) sounds a bit much, but the next lines soften it: she wants "un tipo que sepa tratarla" (a guy who knows how to treat her) and who makes her "volar al mirarla" (fly just by looking at her). Meanwhile he is standing right there asking "Yo no sé pa' qué busca si me tiene aquí" (I don't know why she keeps looking if she has me here). Pa' is just a clipped para, very common in sung Spanish.
What she wants is not money. "No quiere ropa de marca, quieren que le marquen el cora'" (she doesn't want designer clothes, she wants someone to mark her heart) is a neat pun on marca and marcar, and cora' is slang for corazón. He plays the honest underdog: "No tengo dinero, pero soy sincero" (I have no money, but I'm sincere). And if you can't keep up? "te mira y te pregunta la hora" (she looks at you and asks you the time), a funny way of saying she brushes you off.