I dig a hole in the desert, they build the Sands on you

from Jay Z – Threat Lyrics on Genius


The city of Las Vegas, Nevada was incorporated in the early 20th century, gradually turning from desert land to arguably the world’s center of gambling. One famous Las Vegas facility was the Sands Hotel, remembered for concerts by the Rat Pack, referenced two bars later

Also a reference to digging a hole and putting your body in it, like they did in the popular movie Casino
