what it is: gibberish on the world stage
where i found it: mandela's memorial
In case you haven't heard, the sign language interpreter at Nelson Mandela's memorial service was an "imposter" who was signing gibberish the whole time. Various details have emerged such as that he was hired at a cut rate $77 for the day vs. the going $160 an hour rate, that he is a schizophrenic who saw angels dropping from the sky during the ceremony, that the agency which hired him has vanished without a trace since the memorial, etc. The story continues to develop. Regardless, it is truly amazing that you can work your way in to the most powerful ring of humans on earth and sign gibberish for all the world. Here's some footage.