Buck fifty

From Rap Dictionary

Buck Fifty A slice to the face with a razorblade(or 'Ox')is called a Buck Fifty, often pronounced 'Buk Fit Dee'. At the time when this term was adopted the average price for a slice of pizza in New York was $1.50. This is the reasoning behind the term. "Yo sun He gave dat nigga a buk fitdee across his face, nigga was all fucked up." (Noreaga)... in the movie 'Paid in Full'