Ok thanks at first i thought people was saying bump like ill pass on answering you lol but thanks this helps alot lol
As far as I know. When you are pregnant and your stomach is stretched and in a round shape, that is called a "bump".
Lol I had thought it meant taking our baby bump and bumping the bellies of other mommies for attention on your post. ...Don't mind me
It means 'bump up my post' :)
With every comment on a post it gets bumped back up to the top of the feed. So when a comment such as 'Bump' is made, its people trying to get their post back to the top for more people to see it.