Robert: Hey Doc, after I have been texting for 3 or 4 hours, my thumbs cramp up and I can hardly move them.
Dr: it sounds like you have thumbilitis, you may not be able to text for a while!
Robert: Can I get a work note for that?
Dr: it sounds like you have thumbilitis, you may not be able to text for a while!
Robert: Can I get a work note for that?
by Weegle November 07, 2009

It's the worst when you're walking down a crowded sidewalk and you get stuck behind someone walking slowly because they're thumbling.
by Munirih19 September 15, 2014

by Spankednateit August 17, 2016

by HTCS July 07, 2009

A portmanteu of thumb and stumble, works best when used with up or down to signify delight or disgust about a page using the Stumble Upon toolbar.
by Danliv2003 March 19, 2009

The act of typing with only your thumbs on all typing devices, I.e. Computer keyboards and other devices through the learned behavior of texting on smaller devices such as cell phones.
Jason thumbled out his term papers on his computer keyboard to the amazement of his parents. "Mom, where are the bandaids? My thumbs are sore from thumbling!"
by Walter eagle December 18, 2010

by lyradius August 14, 2011
