bull dust
See also:
bulldust
English
Noun
bull
dust
(
uncountable
)
(
Australia
,
road transport
)
A very
fine
,
powdery
red
dust
prevalent
in
arid
outback
regions
, which
accumulates
in
potholes
or on
unsealed
roads
,
creating
a
deceptive
,
flat
appearance
before
vehicles
sink
into it.