When you are walking down a hallway or corridor and someone coming the opposite way mirrors your every move to get out of each other's way. Often ends in a collision.
by TheStig1214 February 16, 2011
An error seen in 3-D videogames in which a certain spot fails to render, which makes the game simply re-render whatever was in view there last. The repeating image seen in place of what should be there is the Hall of Mirrors error.
by Nimbostratus February 11, 2005