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2.
When a vehicle cuts you off on a snow covered road and sprays salty white shit all over the windsheild.
Fuck that dude in that truck just sprayed me with a road load! Turn on the wipers
by Ichi_Oni January 29, 2010
 
1.
Roadside fecal blowout; the need to blow out your ass on the road, to take an unexpected fast shit while driving.
"Oh my God, pull over, I got a road load comin' on!"
by Coco Loco September 10, 2006