Around like 2006 on 4chan people used to post a snippet from I think an Azumanga Daioh manga. It went something like this:
Panel one, group of girls, no one saying anything.
Panel two, one girl suddenly exclaims "", another girl turns to her and says "Are you still thinking about that!?"
Panels 3+: first girl continues ranting about whatever (person editing the meme inserts whatever text)