[ssaftler]

what is the origin of the boo-hoo girl (who is she)

I have no idea who or how. The GIF started showing up here on FR some time ago as a response to messages like this. You can use your favorite web search engine to look up "Boo Hoo Girl GIF" and you'll see this and a few variations of it.

[roadcat]

You can use your favorite web search engine to look up "Boo Hoo Girl GIF" and you'll see this and a few variations of it.

I tried looking myself but couldn't find the origins, but there are some good gif files out there!