Arremangamos comes from the verb arremangar, which literally means "to roll up one's sleeves." It's an interesting word because it implies getting ready for hard work or a challenge.
In the context of this song, which touches on themes of working hard and dealing with rivals, "arremangamos parejo a los contras" suggests that they are ready to confront their adversaries head-on and with equal force. It's a vivid and action-oriented word that stands out.
This song, "Ando por Houston," is a cool look into the life of someone working hard in Houston to make a good living. Our singer is always with "la corta" [a short gun], which keeps them safe from "corrientes que no quieren verme bien" [bad people who don't want to see me well].
They're making good money in Houston, and you might even catch them singing at "el puesto 59" [post 59]. The lyrics mention coming from "la manzana" [the apple] due to "daños del ibex" [IBEX damages], and they've got a record that people want to know about. There are some intriguing lines about "el señor de las aves que no le pagan" [the lord of the birds who doesn't get paid] and working with "el greñas" [the messy-haired one] to jump over various shootouts. It sounds like a pretty intense life, with dark windows and a shout-out to a loyal friend who got them into this fast-paced world. They're partners, and they "arremangamos parejo a los contras" [take on the rivals equally], making sure everyone knows it. The song also mentions three brothers, Isaías, and a readiness to jump into anything on Wednesdays.