Chingados is a very common and versatile Mexican Spanish slang word that can mean many things depending on context, but here it functions as an intensifier, similar to "damn" or "hell" in English.
In the song, the singer, frustrated and perhaps a bit drunk, exclaims, "No se en dónde estás ni con quién chingados estés" (I don't know where you are or who the hell you're with). It adds a raw, emotional punch to his longing and jealousy, making it a memorable and authentic expression of his feelings.
Have you ever sent a text you immediately regretted? Los Rumberos totally get it in "Hola, Buenas Noches." This song is all about that late-night moment when you're missing an ex, maybe had a little too much mezcal, and suddenly, your phone is in your hand. The singer admits, "Sé que ya no te debería extrañar" [I know I shouldn't miss you anymore], but that memory is stubborn, showing up "sin invitación me llega al despertar" [without invitation it arrives when I wake up].
It's a relatable story of giving in to temptation, sending that message even when you know you shouldn't. He even says, "el mensaje ya no puedo desmandar" [I can't unsend the message now]! The chorus is basically the text itself: "Hola buenas noches, soy yo otra vez / No se en dónde estás ni con quién estés / Mil disculpas, no quiero molestar / Ni siquiera tienes que contestar" [Hello, good evening, it's me again / I don't know where you are or who you're with / A thousand apologies, I don't want to bother you / You don't even have to answer]. He just wants them to know, "Solo quería que supieras que aún se te extraña por acá" [I just wanted you to know that you're still missed around here]. It's a fun, slightly desperate, and very honest look at post-breakup feelings.