Nalgotas is a colloquial and somewhat exaggerated term for "big buttocks." It's the augmentative form of nalgas (buttocks), implying a significant size.
In the song, Justin Quiles repeatedly asks, "Dime a quién yo le agradezco esas nalgotas" (Tell me who I should thank for those big buttocks). This word is interesting because it's a playful and slightly provocative piece of slang that captures the song's reggaeton vibe and direct admiration, making it memorable and unique to the song's context.
Get ready to feel the heat with Justin Quiles' "TU ROPA"! This song is all about the intense, lingering feelings after a passionate night. Our singer can't get enough, literally, as he sings, "Se me quedó tu olor en mi ropa, tu saliva en mi boca" [Your scent stayed on my clothes, your saliva in my mouth]. He's totally hooked, even calling his love interest a bit "friki" [freaky], but quickly adding, "pero a mí me gustan locas, locas" [but I like crazy ones, crazy ones].
He's clearly smitten and wants a repeat of the night, asking, "De esa noche quiero otra" [From that night, I want another]. He feels powerful with her, even saying, "Encima de ti me siento He-Man" [On top of you, I feel like He-Man]. He knows she's no angel, calling her a "demon," but that just seems to make him want her more. He's desperate to avoid a cold, lonely night without her, hoping she'll stay because, as he says, "Mami, tú estás como el día, mami, bien calentita" [Mommy, you're like the day, mommy, very warm]. It's a fun, flirty track about being completely captivated by someone after a wild night!