Paca literally means a bale or tightly packed bundle, but in this song it is slang for a large stack of money. In "Ella gasta una paca cada vez que entra a Saint Laurent", Duki uses it to emphasize extravagant spending, making this an unusual and memorable piece of slang.
Duki and Fuego turn “Cereza” into a flashy, playful celebration of style, money, and attraction. The repeated phrase “Mira my flex” means “Look at my flex,” with flex meaning to show off your success, clothes, jewelry, and expensive lifestyle. He describes taking a woman shopping at Fendi and Saint Laurent, where she spends “a paca,” or a thick stack of cash. Even the title image appears in “Fumo cereza” [I smoke cherry], a sweet, colorful detail inside all the luxury and swagger. He likes that she is fashionable but also goes “sin make up” [without makeup], so his admiration is not only for her designer look.
The song also lets the confident pose crack for a moment. “Lo admito, la fama me estresa” [I admit it, fame stresses me out], while he says she stays in his head and leaves him “tonto como el jet lag” [dazed like jet lag]. Then the boasting starts again: diamonds, a Jeep, a jetpack, a trip to Venice, and jeans costing 1,500. The woman dances with his diamonds and joins him “arriba con los G's” [up here with the Gs, meaning his crew]. There is a tougher edge too: “Si te tocan los parto como Street Fighter” [If they touch you, I break them like Street Fighter], a blunt video-game comparison that protects the glamorous fantasy. It is a fun mix of romance, designer-name flexing, and the pressure that comes with becoming a star.