Top Definition
A syndrome in which chronic users of stumble upon (involuntarily and out of habit) click the bottom left of the task bar when accessing the internet on web browsers that do not have stumble upon installed.
Why are you clicking on the favorites button?

What?... Oh sorry, I have Stumbler's Syndrome.
by Corey Eeeeeeeeeeeeeeeeeeeeeeee October 21, 2008
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