And the Wiener is… is episode 05 of family guy season 03. It was originally aired on August 8, 2001.
When Peter becomes jealous of the Chris’ physical assets, he joins a gun club to overcompensate for his small size. But when they go on a hunting trip, it takes brains, not brawn, to save them. Meanwhile, Meg finds herself the target of the “cool” kids’ wrath at school.