Jiggerboo is the preferred and traditional pronunciation and spelling of jigger boo and jiggaboo. The latter spelling has become prominent since the advent of nigga as a term for nigger. Jiggerboo is used to describe an unknown Negro (meaning one you do not personally know) and who is not immediately known to be violent (as would be the case for a Negro on a police show). Once you have met them or know of violent tendencies, the term nigger is preferred and more accurate.
1. Go into the house! There's a bunch of jiggerboos walking down the street.
2. I need to get me a jiggerboo to clean my house.