Top definition
the condition caused by playing too much tetris, where the sufferer sees falling tetris blocks wherever they look.
this effect can be more severe with closed eyes.

other symptoms include:
-craving more tetris. this temptation must be fought at all costs.
-trying to decide which tetris blocks would fit into any space you see
-lack of motivation to do anything other than beat your current tetris record.
one quick game will have me in tetris syndrome for days.
by joeftw,again February 12, 2009
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