1 definition by Fred Flinkerstone

Top Definition
A heads up offered by a look out that an invidual not down with, adapted to acceptance of, or directly invovled with the groups illegal activity, such as the buying or selling of illegal drugs, is approaching. The invidual is a stranger and without right or reason to be there, even if the place is public, as it is gang territory.

5 0 call is offered without regard to whether the stranger is or is not a member of law enforcement; it is determined soley on trust i.e. whether that person is cool in the cultural sense, not the popular sense.
Example 1: A citizen walks through an area of illegal activity where they don't live or are not know.
The look out yells, "5 0 fool."
by Fred Flinkerstone July 10, 2008

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