Rola por metro circulates online as a user-shared meme audio, known mainly by its exact phrase rather than by a documented original recording. Its spread follows the usual soundboard pattern: listeners hear the phrase in a short video or chat, search for those exact words, and reuse the clip in their own edits. The title is the hook, so the sound keeps appearing wherever creators need a quick, recognisable punchline. Because the joke is carried entirely by the spoken phrase, it remains easy to drop into new contexts without explanation.