Colmillo literally means "fang" or "tusk". However, in Mexican Spanish, especially in the context of street smarts or business, it's often used metaphorically to mean "cunning," "shrewdness," or "experience."
In this song, the artist sings, "Yo tengo colmillo y no me lleva la marea se nadar" (I have cunning and the tide doesn't carry me away, I know how to swim). This implies that he is experienced and sharp, not easily fooled or swayed by challenges, making it a very interesting and culturally rich word choice.
This song is all about the rise to power and the tough life that comes with it. Luis R Conriquez tells us how he went from nothing to being a boss, saying, "Con persistencia me llegaron los billetes" [With persistence, the money came to me]. He's been through a lot, and he's not afraid of a fight, even mentioning, "Traigo a mi mando a varios plebes que no temen al dar muerte" [I have several young men under my command who aren't afraid to kill].
He uses some really cool animal imagery to describe his position. He says other "sharks" want to get close, but they turn into "salmon" when they meet him. And he's the "king of the jungle," ready to hunt and fight off any "deer" or even a whole "pack." It's a pretty intense look at a life of power, loyalty, and constant readiness for conflict, all while remembering his family and staying true to his word.