Assobiando comes from the verb assoar, which means 'to whistle'. While whistling itself isn't rare, the way it's used here paints a vivid picture of the character's state of mind.
In the song, the narrator is wandering through New York, having left a tumultuous past behind. The act of "assoar" (whistling) while walking with hands in pockets suggests a sense of casual detachment, perhaps a newfound freedom or a way to cope with loneliness, making it an interesting and evocative detail.
Picture this: snowflakes blanket New York City while a lone Portuguese wanderer whistles through the avenues, hands tucked in his pockets. Beneath that icy silence he longs for the golden sun of Lisbon, the warmth of familiar streets, and the glow of sunsets he can no longer find—even on Sunset Boulevard. As he strolls past neon signs and chance encounters (like a stranger offering a cigarette on 42nd Street), he keeps reminding himself that the reckless life he left behind is sealed off forever.
The song is a heartfelt contrast between two worlds—cold exile versus sunny homeland, anonymity versus belonging. By repeating “Ninguém vai-me encontrar” (“No one will find me”), the narrator celebrates the freedom of starting over, yet every snow-covered step echoes homesickness for Portugal. “Cai Neve Em Nova York” is both a travel postcard and an inner journey of self-discovery, inviting us to feel the sting of winter air while dreaming of Atlantic sunsets and the chance to reinvent ourselves.