Duh...I know it means SOMETHING...

[Spiky Bugger]

...but WHAT, exactly?

Looking at the recent posts list, a mini-version of my avatar slightly overlaps the OP's avatar. Why?

 

[Sandy]

I think it means it's a topic on which you have posted.

 

[southernlady]

^^ What Sandy said...it means you have posted in that topic list.

 

[Spiky Bugger]

Aha...I knew it was my fault!

 

[bearmom]

It means the Googly internet gods have selected your true soulmate, and given you the answer that you didn't even know you asked.