Just when I thought that I had heard of everything along comes Jeopardy! to prove me wrong...
Donkey Punching on Jeopardy (http://www.youtube.com/watch?v=AorrF2ATGtA#ws)
Clueless, I turned to (where else?) wikipedia (http://en.wikipedia.org/wiki/Donkey_punch) for an explanation. Wikipedia's animated graphic is absurdly unnecessary but does underscore the utter preposterousness of the topic.
Almost as ridiculous as this. (http://urbanlegends.about.com/od/celebrities/a/richard_gere.htm)
Link to original news story. (http://www.dailymail.co.uk/news/article-2088450/What-donkey-punch-Naughty-Jeopardy-flub-goes-viral.html)