unavoidable chin move

An attack used by the final boss of the Dragon's Lair stage in Sonic and the Black Knight. It is notorious for being unavoidable, and is used in the third phase to discourage the player from approaching the dragon, and to instead cut down a pillar to attack it. The term was coined by Arin Hanson of Game Grumps when he quit the game in a bout of frustration due to being repeatedly killed by the move.

I hate this stupid unavoidable chin move!
UNAVOIDABLE CHIN MOVE!!!