What does "Bump" mean?

[Heyart]

I see the word , "Bump" in the reply section of many post. I have no clue as to the meaning, so for someone out there who knows: What the heck does that mean?

 

[GpCapt Mandrake]

Here's a photo explanation:

 

[BillsCamino]

FRD

 

[Gunanddoglover]

 

[charlie hotel lima]

Jus' don't do it with no big fat woman...

 

[spencer60]

Does that actually work on this site?

I see it here all the time and I know it work(ed) on other sites, but I thought posting to your own comment or ad didn't change the metrics on this site.

 

[Psilloh1]

Bumping is like grinding…..

 

[Boogar Presley]

 

[liljonh30]

And TTT
tatas to top..

 

[Kahrnut]

 

[BIKER13]

and you ask why we cant have nice things