What Does "bump" Mean on Facebook?

Many forums or other social media sites, including Facebook groups, are organized chronologically by the last comment received on a post. To increase potential viewership, users may add a "bump" comment to their posts (or another post they want more people to see) to put it back at the top of a list. Although the algorithm for the Facebook newsfeed is more complicated, more comments and user interaction generally increases the potential audience for an individual's post as well.