FULL TIME is a crush so total it wrecks the singer's schedule and his bank account. He starts by describing her: "Morenita de tanto sol" (tanned from so much sun), "Mi curita para el dolor" (my little band-aid for the pain). Then he throws everything else away: "Que se jodan las canciones, los conciertos, los aviones", which bluntly means "screw the songs, the concerts, the planes". Since he saw her, "estoy full time pensando en ti" (I'm thinking about you full time), and "de ti no quiero vacaciones" (I don't want a vacation from you).
The mix of English and Spanish is part of the joke: "No un poco de time, full time", "cuando estoy down, cuando estoy high". He says the Mona Lisa falls short next to her, he sees her face "hasta en el humo del canuto" (even in the smoke of a joint), and the bank calls to say he owes five hundred thousand. The best bit is a mini language lesson: being crazy about her makes him "un tarado" in Argentina, "un tarugo" in Spanish and "un morón" in Puerto Rico, three regional ways of calling yourself an idiot.