We recently got a question over on Anime.SE that is about what appears to be about some sort of Korean hand gesture (depicted in a manhwa): What do these money-related gestures mean?
Would this question be on-topic here? I'm thinking it might be worth migrating here, but seeing as this site is still in early beta, I don't want to dump things on you that you don't want.
(Precedent-wise: we have a couple of gestural-communication-related questions over on Japanese.SE, e.g. https://japanese.stackexchange.com/q/27451/, and I would imagine that this is also true of other language SE sites.)