Huyamos is a powerful command that means "let's flee" or "let's escape". It comes from the verb huir (to flee) and carries a sense of urgency and romance that you don't get from the more common vámonos (let's go).
In the song, the artist sings, "Vámonos de aquí, huyamos a otro lugar" (Let's get out of here, let's escape to another place). He uses this dramatic word to invite his love to run away with him, leaving their problems behind for a new life together. It perfectly captures the song's theme of young, rebellious love.
Mexican rapper Tornillo lays out a classic love story in "Nena Ven": the bad boy from the neighborhood falling for the good girl. He's completely obsessed with her, telling her, "Tus ojitos brillan, como tú ninguna" (Your little eyes shine, there's no one like you) and that she's the cause of his madness. He sees himself as "el loco del barrio" (the crazy guy from the neighborhood) and her parents as the only real problem they face.
The whole song is an invitation for her to run away with him. He promises to protect her and love her forever, saying, "te amaré hasta que la muerte venga por mí" (I will love you until death comes for me). The chorus repeats the contrast between them, "Yo soy malo y tú eres buena" (I am bad and you are good), while describing their secret, passionate moments together. It's a straightforward, intense declaration of love from someone who has found the one person he wants to spend his life with.