Birome is an interesting word because it's a regional term for a ballpoint pen, primarily used in Argentina and Uruguay, where Acru is from. It's not a common word you'd hear in every Spanish song, making it unique and culturally specific.
In the lyrics, Acru uses it to emphasize his role as a writer and lyricist: "tengo miles de historias dentro de la birome" (I have thousands of stories inside the pen) and "ando dibujando textos desde la birome" (I'm drawing texts from the pen). It highlights his creative process and connection to his craft.
Acru steps into Bizarrap’s booth like a prize-fighter entering the ring, throwing lyrical jabs to prove he is still “el 1.” Across this rapid-fire freestyle he shouts out his alias Young Roman, flashes his “diploma” in out-rapping lesser MCs, and pledges allegiance to the underground scene. The verses are a whirlwind of confidence: soccer dribbles like Hazard, graffiti tags on rivals’ foreheads, and punch-lines sharp enough for Stalingrad. Each image reinforces the same idea: Acru’s talent is raw, battle-tested, and impossible to ignore.
Beneath the bravado lies a deeper message about authenticity. Acru celebrates making art “a fuego lento,” far from VIP lounges or flashy diamonds. He travels on the train, smokes “flores de Edén,” and trusts only the brotherhood built through music. By the end, his freestyle becomes a declaration of purpose: keep the flow true, keep the skills deadly, and keep the spirit alive for Argentina’s underground hip-hop culture.