When you type very fast and a lot. One who types long e-mails and messages has this condition. One who types your eyes off suffers from this.
I had Diarrhea of the fingers last night, I must have typed a Novella!
by Trent Kuver May 7, 2008
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Quickly typing long and excessive statements when others usually abbreviate - usually over an instant or text message.
"I laughed at Stan's diarrhea of the fingers as he typed two paragraphs to me over AIM."
by pixieJen February 21, 2007
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