After every patch, there are rumors that "Ony is breathing more" or "More whelps are spawning." For a couple of days after the release of 1.10, it was actually true. This vid is of an attempt before the bug was confirmed, thinking it might be a buffed version of the encounter, with hilarious results.

Thralls Champions of Terenas vs. Uber-Onyxia
Music: Harder, Better, Faster, Stronger (Ony is Serious remix)

Note: In case you haven't heard "Ony is Serious" before, it's not my raid leader, it's some sound file that's been posted on numerous WoW forums. I just like how it went with the video. ;)

Warning: Strong language inside.