1. To have been killed; murdered; finished. From ashes to ashes, dust to dust.
2. Archaic. To be high on PCP, commonly known as angel dust.
3. After a robbery, when the police have supposedly thoroughly investigated the crime scene, including dusting for fingerprints.
1. He wouldn't pay JJ, so JJ dusted him.
No more beer! The keg's dusted.
2. The dude was so dusted, he thought he could fly, broke his back when he jumped out of that tree.
3. The police just left, they dusted for prints.