The word is a variation of "night rider" but in the case of a "dusk rider", it describes a female ;(usually white but not always); who mostly has sex or has relationships with "brown people" which can consist of men of indian, middle eastern, south asian, etc origin.
N: yo Z, isnt that chick such a dusk rider!
Z: Yah man she is, trust!
N: she hops on that brown D all day erry day
Z: Yah man she is, trust!
N: she hops on that brown D all day erry day
by Neo999 February 5, 2011