Peine literally means 'comb' in Spanish. However, in the context of this song, it's used as slang for the 'magazine' of a firearm, referring to the part that holds the bullets.
This word is interesting because it's a common object with a surprising, less common, and impactful double meaning in street slang. The lyric "El peine tiene quince y cabe una docena más" (The magazine has fifteen [bullets] and a dozen more fit) clearly indicates this alternative meaning, adding a layer of street credibility and intrigue to the lyrics.
“Si Salimos” pairs Puerto Rican-American trap star Eladio Carrión with hip-hop legend 50 Cent for a swagger-packed anthem about street credibility and unstoppable hustle. Over a menacing beat, the two trade verses that paint a picture of late-night getaways in unmarked cars, designer splurges, and a brotherhood that always has each other’s backs. The hook—“Y si salimos, estos cabrones no salen” (“And if we step out, those guys stay in”)—is a bold warning: when their crew shows up, rivals think twice.
Beneath the bravado you hear real-life stakes: Eladio prays for his people’s safety, shows distrust for anyone outside his tight circle, and admits that every luxury comes from relentless work in dangerous environments. 50 Cent echoes the sentiment with English bars about icy jewelry and high-risk loyalty. Together they celebrate success while reminding listeners that it was earned in the trenches, turning the song into both a victory lap and a cautionary tale about the costs of living large in the streets.