Green’s Dictionary of Slang

Brooknam n.

[? ref. to Vietnam, i.e. Brooklyn as a war zone]

(US Black) Brooklyn, N.Y.

1996		Jay-Z ‘Brooklyn’s Finest’ 🎵 Brook-nam, sippin on Cristal forever.
2005		OC ‘Story to Tell’ 🎵 The place was Brook-nam, BK, NY city.