Plebitas is a quintessential Mexican slang word, particularly from the state of Sinaloa where this style of music was born. It's the feminine, diminutive form of plebe (the common people), but it's used here as a cool, informal way to say 'girls'.
In the song, the singer gives a shout-out directly to his female fans, saying "Ahí les va, plebitas", which is like saying "This one's for you, girls!". Learning this word is a key to understanding the specific culture and vibe of modern Regional Mexican music.
This song is a very direct and intense declaration of love. The singer starts by making it clear he's extremely protective, warning other guys to stay away: "No dejaré que ni un vato se te arrime" (I won't let any guy get near you). He sees his partner as a "paquete completo" (complete package) with a great body and beautiful eyes, and he feels lucky to have her all to himself. This isn't just a one-sided thing; he believes their relationship is meant to be, saying "Y así lo quiso Dios" (And that's how God wanted it).
What makes this song really interesting is how self-aware the singer is. He openly admits, "Tal vez soy tóxico, pero bien te gusta" (Maybe I'm toxic, but you like it a lot). He justifies this possessive side by promising to treat her like a princess and work hard—"por eso le chingo yo" (that's why I work my ass off)—to give her a better life. It's a mix of old-school romantic ideas with a modern, blunt confession of being a little bit "toxic."