[Sokka thinks about that... weird. Okay, whatever.]

And neither of you have been in Luceti during the winter... well, suffice to say, there's just snow everywhere. Even our houses are made of snow. Sometimes we have snow-derived meals. A common mode of transportation is snow drifts. In the ancient days, we once fought the fierce armies of snowmen from the far, far south.

[Yes, at some he started making this stuff up, mostly to see if Frey would actually believe him. And maybe if Suki would too.]