Your Ghetto Level defines how ghetto, gangsta, hard, and/or urban you happen to be. Ghetto Levels are between 10 and 1 with the extremes of 10 and 1 being inclusive.
The average urbandictionary.com poster has a Ghetto Level of 1.
A man who lived in the ghetto, slang rocks, and worked his way out only to be brought down by old beef has a Ghetto Level of 10
Your pizza guy has a Ghetto Level of 3.