http://media.spikedhumor.com/8944/Jingle_Bells_Reversed.swf
Enjoy.
Created 19 years ago2005-12-19 15:13:03 UTC by m0p
argh.. i turned volume up all the way trying to listen to message...OMGWTFBBQ!!!!
Well, all of these 'shock-flashes' are pretty old.They're actually called Sabotages, or Screamers. Here's a Wikipedia article on them.