Chambear is a colloquial and very common verb in Mexican Spanish, meaning "to work" or "to hustle." It's a great word to learn because it's used frequently in informal contexts, especially in regional Mexican music.
In this song, the lyric "Los pleitos no son lo mío, mi fuerte ha sido chambear" (Fights aren't my thing, my strength has been to work/hustle) highlights a character who prefers to earn a living through hard work rather than conflict, giving insight into his values and lifestyle.
Get ready to meet David from "David De Los Acme" by Grupo Maximo Grado featuring Legado 7! This song is all about David's life, showing us his loyalty and his role within the "Acme" crew. He's always ready for action, saying, "Aquí estoy listo y bien pilas para jalarme / Con el equipo y la etiqueta de los Acme" [Here I am, ready and super energized to get to work / With the team and the Acme label]. He's a sharp dresser, sometimes casual, sometimes elegant, and always on point with his radios and cell phones.
David is a man of many talents and interests. He loves cars and trucks, and he's a fan of adventures with Razers and motorcycles. He's also incredibly grateful to those who've helped him, especially "El N1" for his trust and "el tío Perfil" for his teachings. While he mentions weapons like the "45 de 1911" and a "Beretta al cinto" [Beretta on his belt], he makes it clear that "Los pleitos no son lo mío, mi fuerte ha sido chambear" [Fights are not my thing, my strength has been working]. Family is super important to him, and he's always there to support the "Acme" crew. If you see him with the young boss, or "chavalo," and need something, he's got you covered: "Si ocupan algo, yo traigo el morral colgado" [If you need something, I carry the bag hanging].