The term references a specific type of Halloween decoration available at a major home improvement retailer. It is a tombstone prop designed to create an eerie atmosphere through sound effects, typically whispers or other spooky noises. These items often incorporate motion sensors to activate the sounds when someone approaches.
The popularity of these decorations stems from their ability to enhance the immersive experience of Halloween displays. They offer a relatively easy and cost-effective way to add an element of surprise and fear. Furthermore, the broad reach of the home improvement retailer ensures widespread availability, making them a readily accessible Halloween staple for many.