The inability to differentiate between inverse Tetris pieces (such as "Z" and "S" pieces) due to increased gravity and/or poor reflexes caused by sleep deprivation (from playing too much Tetris) or lack of skill (from not playing enough Tetris).
I almostbeat my high score last night, but the tetrislexia got to me. I confused the "L" pieces and totally screwed myself!
A person you hate intensely not because they deserve such hatred but because they serve as a focus for your general hatred. A healthy way to dispense with excess animosity.
Jake's not really that big an asshole. He just serves as my hate sink.