Green’s Dictionary of Slang

dred n.

1. (US gang) red, as word by a member of the Bloods gang.

[US](con. 1990s) in J. Miller One of the Guys 60: ‘A Blood is a Slob to me...I see somebody dressed all in dred, I look at ’em and go, “Psssh, whatever”’.

2. see dread n.2 (5)