User blog comment:General MGD 109/How Strong Are Ghosts?/@comment-3481504-20120710193327/@comment-3481504-20120710203433

Um, dude I think that is the point: some Ghosts are stronger than others, like anything they have a tier class hierarchy. Plus, Bobby, as a Vengeful spirit, would be stronger than most of the ghosts faced by the Winchesters. It's quite simple, Bobby was infuriated, and he was able to toss Dick to and fro, but let it didn't hurt him.