Desvergue is a very informal and somewhat vulgar slang term in Mexican Spanish that refers to a chaotic situation, a big mess, or even a wild party or debauchery. It's a strong word that you won't find in every song.
In the context of the song, the line "Pa'l desvergue soy materia dispuesta" translates to something like "For the chaos/party, I'm ready material" or "I'm always up for a good time/mess." It perfectly captures the song's theme of moving on from a relationship and embracing a carefree, perhaps wild, single life.
Get ready to dive into "Ni Con Patrulla" by Los Dareyes De La Sierra featuring Carin Leon! This song is all about moving on after a breakup and, let's just say, not looking back. The singer is totally over it, declaring, "Se acabó aquí, abril y mayo / Querer seguir no tiene caso" [It's over here, April and May / Wanting to continue is pointless]. He's not wasting any time, even joking that there's a "fila queriendo subirse a mi carro" [line of people wanting to get in my car]!
He's embracing his single life with full confidence, stating, "Pa'l desvergue soy materia dispuesta / De LV y de soltero, traigo bien puesta la camiseta" [For the party, I'm ready / Of LV and single, I'm wearing the jersey well]. He's even looking for "otra nalguita pa'l el mal sabor / Que me dejó, la separación" [another little something for the bad taste / That the separation left me]. The most blunt line has to be, "Ya no me agarras ni con patrulla / Ya probé cosas mejores que las tuyas" [You won't catch me even with a patrol car / I've tried better things than yours]. Ouch! It's clear he's completely done and ready for new adventures.