The song "Smooth Criminal" by Fast Cash is all about the singer's confidence and smooth lifestyle. He talks about his ability to charm women and make money, comparing himself to a smooth criminal like the infamous Michael Jackson song. He boasts about his luxurious lifestyle, mentioning upscale hotels, expensive cars, and even his good credit score. The lyrics also touch on the struggles the singer has faced and the determination to make it big in the world. He describes himself as a smooth and confident individual, unapologetically embracing his success and the envy it brings from others. The song exudes a sense of swagger and self-assuredness, celebrating the high life and the ability to overcome obstacles to achieve success.