The extra cookie goes to quickreaver
for investigating this mystery
and getting an answer from Perry Battista:
That artwork is awesome. Hee...the place even has a hot tub!
What's the meaning do you think? I mean...there's gotta be a meaning right? Situations often have the boys over a barrel - so I suppose it could be a reference to that.
Woot! I am ridiculous happy about this. Fans rock. The crew of SPN rock!