1 definition by Danliv2003

Top Definition
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 05, 2008

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug