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An elderly person who has grown so old, frail, and wrinkled, they look as if they have lost all moisture in their body leaving only a leathery bag of dust.
"That fuckin' dustbag next to me on the bus smells like steamed vegetables, dirty hair, and mothballs."
by Mike Abahazy March 15, 2006
a reference to any old person especially an old chinese person.
"f*ckin' dustbags need to get out of the way so I can get off this f*ckin' bus!"
by cherry sissy maid July 12, 2006
A unclean person. A person with bad hygiene.
She wrore those dirty clothes? What a dust bag.
by topxslang April 25, 2014