A thimble full of alcoholic beverage, usually what lightweights drink
Dude I had six thumbles of beer and was totally fucked up
by Spankednateit March 3, 2016
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To make a typo while inputting text on a hand held device such as a cell phone.
"Hey guys, gow ard yot?"

"Sorry, I mean, how are you? Whoops, looks like I thumbled!"
by HTCS July 8, 2009
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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.
"dude, shit's cash, thumble up"

"ewww, no more Nailin' Palin for me, thumbled down"
by Danliv2003 November 5, 2008
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When your girlfriend texts your wife thinking it's you. like Bret Favre or Tiger Woods.
by lyradius August 11, 2011
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Engrossed in your phone or device while being oblivious to the world
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 16, 2014
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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 16, 2010
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pain and cramping in the thumbs that comes after many hours of texting
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?
by Weegle November 7, 2009
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