Chambonea comes from the Latin American Spanish verb chambonear, meaning to fumble, mess around, or handle something clumsily and showily. It is a playful, informal word you will not hear in textbook Spanish, which makes it stand out.
In the line "La pistola, chambonea" ("Her secret weapon, she plays it up"), the word suggests she flaunts or shows off clumsily on purpose, turning an awkward move into a confident, flirty display.
This is the ultimate summer party anthem from Puerto Rican Reggaeton legend Don Omar. The whole song is a scene: the sun is out, and a woman with a tan and her friends are looking for a good time. As Don Omar puts it, "Salió el sol / Cuerpo bronceado y sus amigas buscaban acción" (The sun came out / Tanned body and her friends were looking for action). The track is all about the power of music, specifically his music, to make people dance with total freedom.
Don Omar describes a woman who is so into the music that she dances completely uninhibited. She lets her hair down and dances so hard she even rips her clothes ("Se soltó el pelo / Se rompió el traje"). He says she drives men crazy with the way she moves, "como se menea" (how she shakes it), and that she's "Bailando pura candela" (Dancing pure fire). It's a simple, direct celebration of sunshine, dancing, and feeling the beat.