In the episode “A-Tisket, A-Tasket,” in reference to Edgar Bergen.
DEAN: She’s not going with you.
JESS: (to Rory) Really, is that true?
DEAN: Yes, it’s true.
JESS: Excuse me Edgar Bergen, I think I’d like Charlie McCarthy to answer now.
DEAN: Shut up.
Edgar Bergen was a famous ventriloquist, who was most well known for acts with a puppet named Charlie McCarthy.
Jess is accusing Dean of making Rory out to be a puppet. It’s possible that Dean doesn’t pick up on the full impact of the accusation, but Dean clearly knows he’s been insulted.
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