Tumbado is a fantastic example of Mexican slang with multiple layers. While it literally means "knocked down" or "lying down," in this context, it describes a relaxed, laid-back, and effortlessly cool attitude, often with a hint of swagger.
This word is so important it's part of the name of the music genre itself: corridos tumbados. In the song, Natanael Cano sings "Ando bien tumbado" (I'm walking around real cool), perfectly embodying the chill, confident vibe that defines his music.
This song is a perfect example of the corridos tumbados style Natanael Cano pioneered. It's all about a lifestyle of risk, business, and enjoying every single part of it, even the tough stuff. The singer tells us he's used to danger, saying he navigates in fire, Como de costumbre navego en la lumbre (As usual, I navigate in the fire), all while making money and taking chances. He's got a crew in Tijuana and learned the business from his father, which gives him a sense of control and tradition.
The whole mood is summed up in the title line: No solo lo bueno, disfruto lo malo (Not just the good, I enjoy the bad). He embraces the bitter with the sweet, from good memories to los tragos amargos (the bitter drinks/times). He's also pretty blunt about his relationships, saying he has several women around but doesn't want any of them because Buscan el dinero (They're looking for money). It's a song about living a fast, dangerous life on your own terms and finding a way to appreciate all of it.