BerryThumb, also known as Ninetendonitis or PlayStationitis is spreading throughout the Text Messaging community. The debilitating ailment is caused by repetitive thumb motions such as those used when sending emails on the QWERTY keyboards found on BlackBerry devices.
In the most serious cases, more drastic measures such as using the voice capabilities in your mobile device and not typing for a day or so while your thumb heals. "Sorry I couldn't text you back, I got me a bad case of BerryThumb."
by rocco828 May 16, 2007