1 definition by Jo Snow

Top Definition
An activity motivated by one's own enthusiasm and passion. It can be something that lasts a few minutes or a lifetime, but importantly always involves an individual interacting with the people around them (online or offline).
Wow, that website Urban Dictionary has developed thanks to the enthusiastic acts of many, many people volunteering their time- some great, some not so great.
by Jo Snow October 17, 2006

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