Concha literally translates to "shell", like a seashell you might find on the beach. It's a common word, but its use in this song is beautifully unique and poetic.
Liniker sings, "Morar dentro da concha / Do teu abraço" (To live inside the shell / Of your embrace). This powerful metaphor compares a hug to a protective shell, creating a vivid image of wanting to find a safe and permanent home within a loved one's arms. It transforms a simple word into a deeply romantic and memorable feeling.
Brazilian singer Liniker treats romance like a full cinematic event in "Tudo", kicking things off by asking for a movie-style happy ending before saying goodbye: "Um beijo sem ensaio, tipo Amor Pra Recordar" ("An unrehearsed kiss, like A Walk to Remember"). She references the classic teen melodrama A Walk to Remember because she wants drama and total sincerity, not polite restraint. Seeing this person cross the street literally makes her break into a sweat ("me fez suar"), and their smile gives her a rush: "Teu sorriso dá barato" ("Your smile gives me a high"). In Brazilian Portuguese slang, dar barato usually refers to the intoxicating buzz of a drug, but here it just knocks her flat on her back rolling in the grass.
By the end, she stops being coy and goes all in. She asks to curl up inside the shell of their hug ("Morar dentro da concha / Do teu abraço") and promises to track them down wherever they go. My favorite part is how direct she gets near the finish: "Se eu for imensa pra você / Sinto muito" ("If I am too immense for you, I'm sorry"). She will not shrink her feelings to fit someone else's comfort zone, and if things get out of depth ("se não der pé", a phrase meaning the water is too deep to touch the bottom), she still refuses to quit. For Liniker, loving halfway is not an option: "Porque amor pra mim / É tudo" ("Because love, to me, is everything").