Wa da da dang
Wa da da da dang (Ay!)

from Boogie Down Productions – 9mm Goes Bang Lyrics on Rap Genius

Meaning

That line is inspired from a 1984 reggae song called History by Super Cat.
http://www.youtube.com/watch?v=xRhz9eHpn_I

To help improve the meaning of these lyrics, visit “9mm Goes Bang” by Boogie Down Productions Lyrics and leave a comment on the lyrics box