John is what??

[Dorian-Gray]

When Sam and Dean are having the conversation about the kids ghosts, right after chuck tells the audience that there will be angels, you can hear Chuck saying something like "John is..." and i can't really make out what he says. Can someone with better hearing tell me? Is it important?

thanks in advance

[Call_Me_Ishmael]

Possibly explaining John having another son since he is talking about his books regarding the events on season four.

[BrandonR]

I think he said "John is not based on my father."