Dogpiling (Internet). November 2023. Page Version ID: 1187471785. URL: https://en.wikipedia.org/w/index.php?title=Dogpiling_(Internet)&oldid=1187471785 (visited on 2023-12-10).
The link leads to a wikipedia page explaining what dogpiling is and how it is used. It's essencialtlly a group or crowd of people all harrasing the same individual. There have been examples of it both online and in person.