I missed this ep on TV, but managed to find it on the web, and I just about fell off my chair at this one:
"I've licked my share of peanut butter..."
This occurs when Brian is asked to direct the porno, and he explains that he isn't comfortable doing this kind of work.
It's a *very* obscure reference to an urban legend about a man who plans a surprise party for his wife for her birthday - he and the friends and family wait down in the basement, and hear her come home. In a few minutes she is heard calling to the dog, ostensibly to feed him.. She comes down the stairs to the basement looking for the dog, and turns on the light - and everyone sees she is naked and has smeared peanut butter on her.. um... y'know. For the dog to.. um... y'know.
/Quagmire on OH! /Quagmire off
I almost died! This show just keeps rocking!
Gare