look up any word, like cunt:
The maximum distance that one can travel from from a given location to a preferred bathroom. The term is most often used to determine whether it is safe to consume food from a particular location. A diarradius varies as a function of the individual as well as the type of food that is consumed.
I can't eat at the taco truck on third street because it is outside my diarradius.
by stone5 September 24, 2010