On ALL my Meta questions, a weird Gravatar is next to my name.

I have never seen this Gravatar or image before.
My Current Gravatar is this:

What's going on? I am using Chrome.
Here is a clearer image:

Apparently, I'm the only one who can see this.
A note from Speed freak: I believe I have found out what the image is, some Spongebob computer game?
