Top definition
When someone thinks they know everything and provide everyone with facts on a certain subject. Virtually a walking Wikipedia. Usually about 40% of the information is correct.
Oh gosh, here comes the Stephan facts.
by nerdling May 15, 2011
Mug icon

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