A fork of Rural Dictionary
Pain of the thumb from excessive use of a blackberry device keyboard
I spent three hours a day checking email and now I've got a case of blackberry thumb
The point wherein excessive use of a Blackberry or video game controller results in lactic acid build-up in the thumb, and therefore pain and numbness.
His excessive texting resulted in a rather painful bout of BTS - Blackberry Thumb Syndrome, which actually needed prescription pain medication to remedy.