Peter says, "I think my name is Earl", which cues the theme song for the NBC TV series of the same name.
Joe assumes that he's the voice of a cartoon bird, and a cutaway shows a cartoon canary saying in Joe's voice, "I thought I saw a cat. I did see a cat." This is a parody of the Looney Tunes character Tweety Pie, whose catchphrase is, "I tawt I taw a puddy tat! I did, I did taw a puddy tat!"
Quagmire insists that Peter drowned in the bathtub while he and Joe were smoking pot. This refers to the plot of a 1967 Dragnet episode titled "The Big High" about two neglectful parents whose baby girl dies in the same manner.