Hollow chrome to your collarbone
Ping against your dome piece and sound like the first key on a xylophone

from Wu-Tang Clan (Ft. Kool G. Rap) – Rivers of Blood Lyrics on Rap Genius

Meaning

The hollow chrome refers to a bullet with a hollow tip. As does the second line: The skull is known to be very hard and when you hit it with a bullet it may make a hollow sound from the bullet bouncing off.

The first few keys on a xylophone are also known to sound quite deep and hollow.. The hollow sound may also be a pun playing on the hollow tip.

To help improve the meaning of these lyrics, visit “Rivers of Blood” by Wu-Tang Clan (Ft. Kool G. Rap) Lyrics and leave a comment on the lyrics box