When one uses their pubic hair to wipe the face of another willing participant. Can be used with both males and females, and with both male and female partners. Female dusting is preferred because the male penis may interfere during a dusting, and it is not a true dusting unless it is done with pubic hair only.
Me and Wendy were so drunk last night that she wanted to give me a blow job. I was only able to pull my pubes out instead of my penis and I gave her a hudson duster instead.