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
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