Definitions by Herro Prease Rong Time

Negro Frown 

A facial expression in which an African-American shows a countenance that expresses a wish for the looker to get the fuck away or I will bust a cap in yo ass.

Loom at the picture of Mac Dre on wikipedia, which is a negro frown.

Negro Frown by Herro Prease Rong Time June 15, 2010