it is when you get analsex from a "blog person" (fellow blogger) on a first date
instead of leaving them a trackback you give them a reachbackaround and play w/ their balls -and or- give reach arounds.
origin.: chicago bloggers meeting blog persons only to end up getting some blog anal.
Carl the blog person got blog anal from Jessica the blogger.
She's on the comments with her friends, like 'how cool is he'...!