Picapica refers to a classic novelty prank: itching powder, a substance that causes intense itching when it touches the skin. It's a very specific and playful word rarely found in everyday vocabulary, let alone in songs.
In this vengeful 80s hit, Hombres G uses the word in the darkly comedic threat "Voy a llenarle el cuello de polvos picapica" (I'm going to fill his neck with itching powder). The repetition of this quirky, child-like word in a rock song about heartbreak and revenge makes it incredibly memorable and shows a unique, humorous take on jealousy.
This song is one of the most direct and funniest breakup anthems you'll ever hear. It kicks off with our singer heartbroken, crying in his room because his girlfriend left him for a "niño pijo" (a posh, preppy kid). He's obsessed with the details of his rival, who "tiene un ford fiesta blanco / Y un jersey amarillo" (has a white Ford Fiesta / and a yellow sweater). The singer sees them kissing in the park and decides he's had enough. It's time for revenge.
His plan starts with a classic prank: he's going to cover the new guy's neck in "polvos picapica" (itching powder). But when his first attempt at revenge—burning the yellow sweater—fails because the rich kid just buys five more, his plans get much bigger. He decides to destroy the guy's car and even threatens, "Lo siento, nene, vas a morir" (I'm sorry, baby, you're going to die). It's a wild ride from teenage sadness to an over-the-top, almost cartoonish revenge fantasy, all powered by the desperate hope that his girl "volverá conmigo, volverá algún día" (will come back to me, will come back someday).