Chingarle is a very common, yet informal and versatile, Mexican Spanish slang term that means "to work hard" or "to put in a lot of effort." It comes from the verb "chingar," which has many meanings, often vulgar, but in this context, it's used to express intense dedication.
In "No Me Para Nadie," the lyrics state, "No fue fácil tuve que chingarle / Desde morro tuve atorarle" (It wasn't easy, I had to work my butt off / Since I was a kid, I had to push through). This word perfectly captures the grit and determination the artist emphasizes in his journey to success, making it a memorable and culturally rich word to learn.
"No Me Para Nadie" is Calibre 50's anthem of hard-won success. The singer looks back on the struggle it took to get where he is and makes clear he walks a straight line, not a crooked one, earning people's respect the honest way rather than taking shortcuts.
He has not forgotten who stood by him when things were hard, and he reminds himself to stay grounded even now that he has made it: nobody crowns themselves, only the work speaks for itself. The chorus is a simple declaration of that earned confidence: nothing and no one can stop him now.