Top definition
UR is the abbreviation for Unlock Reality a term derived from the Unlock Reality Manuscript text being shared round the world via bookcrossing. It is also the source of the UR-Effect and the Pre-UR-Effect.
When asking what is UR, the best answer would be, UR is Unlock Reality.
by Bella Savage October 24, 2006
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