by jeffw October 19, 2005
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.
by Daryl Christie October 24, 2008
BlackberryThumb is a medical condition that results in pain in thumbs and connected tendons from overuse of typing on mobile devices.
When the base of your thumb hurts after typing away all day on your blackberry or other mobile device. What you now feel is blackberrythumb1
by BBaddict October 14, 2008