The phrase sti cazzi is well known Italian slang used to dismiss something as unimportant, roughly expressing complete indifference. Clips built around the Serpico name circulate in Italian meme and soundboard culture, where short dubbed or quoted movie moments are reused as instant reactions. The appeal comes from pairing a serious crime drama reference with crude everyday language. That contrast helped the sound spread in chats and short videos, and it remains popular because the meaning is understood immediately even from the tone alone, without needing the full scene context.