Assuming you would like a step by step guide on how to delete multiple Stickies on a Mac:
1. Open Finder and click Applications in the sidebar. Then, double-click on the Stickies application to launch it.
2. In the Stickies application, click on the Edit menu and then select Select All. This will select all of the stickies currently in the application.
3. Next, press the Delete key on your keyboard to delete all of the selected stickies at once.