Secret Achievement Guide

I've seen a girl from kross have it in the secret achievements area and I'm wondering how to get it. Help me?

Something tells me it deals with mushrooms because of the word truffle

http://www.youtube.com/watch?v=t5whaRkuipU

I don't think it's related to getting mushrooms because she doesn't have any of the other mushroom achievements

lol I can still hear the jiggle. But how are we supposed to complete the achievement..?

Who is the girl?

Seen it too

I've asked her but no response. She's afk too much. Anybody know who else might have it?

Same

:o..