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3.
When your thumb gets too sore; from texting, playing games, facebooking all on your iPhone!
I have been facebooking for 2 1/2 hours....i am having some iThumb
by akas1129 October 05, 2010
0 1
 
1.
Symptom when you scroll with your Ipod too much and it hurts.
My iPod gave me iThumb.
by John Zhong March 02, 2008
10 0
 
2.
n. a condition of soreness to one's thumb from overuse on his/her iDevice (iPhone, iPad, iTouch).
Doc says I've developed iThumb and has advised me to stay off my iPhone for a few days.
by pammyv December 12, 2010
2 0