I think they are talking about the teddy bear.
The story goes something like that, J. Michael Straczynski, creator of Babylon 5, hates cute things. He promised there were going to be no children or androids in Babylon 5 (maybe in response to Wesley Crusher and Data). Eventually, someone gave him a teddy bear. A writer. And the saga begins.
JMS promised to get revenge and a paraphrase "by fucking up his script". It's somewhere on Babylon 5: Artifacts from Beyond the Rim. The teddy bear was pictured on a Babylon 5 episode when they open a merchandising store:
The writer then wrote a Star Trek episode, or some other series, where the teddy bear appears, in space, and one of the characters says:
Who would space a teddy bear?
Some more about it: http://www.eeggs.com/items/25040.html