Quote Originally Posted by Felis View Post
Can you still move while casting? If yes, then there is no animation lock.
Animation lock lock your character on the spot until the animation end.
It is not about spell effect, but about character mobility.

Ask 1.x players for more informations about animation lock
If you define it by movement. I would define it by the inability to use another ability due to the animation. The animation is locking you out of casting. It's why you can't cast 4 oGCD's in the same window.