Sokka: 'Aang, Foo-Foo Cuddly Poops. Foo-Foo Cuddly Poops, Aang.'
Sokka: I have a natural curiosity. (upon being asked??by Katara why he just licked something after hallucinating on catcus juice all day)
Sokka: Nicely done. (upon watching Katara rather impressively??shake down two Earthbending students about the whereabouts of the Blind Bandit)
Sokka: (in a whisper with hands extended in a final swoosh) Water Tribe.
Not so much a funny quote but definitely showing the depth of Sokka's brotherly love and protective nature when it comes to Katara...
Sokka: (tags Aang to the ground without??hesistation despite the fact he has seen Aang's full fury and power in the avatar state) You burned my sister!!!