look up any word, like ratchet:
 
1.
The hangover-like effects which are experienced the night after heavily abusing Dust Off, a beloved brand of compressed canned air which is normally used to clean computer keyboards.
Steve did half a can of dust-off last night and now he has a pounding dustover.
by cashvegas February 23, 2009
 
2.
That fucking irritating line of dirt that is always leftover when trying to sweep a dust pile into a dustpan. Dustovers cannot be killed, only made smaller and smaller until they are barely noticeable.
I had to get the floor spotless for dorm inspections; but ever time I tried to sweep up the mess there were dustovers.
by Jay Dubaya April 26, 2011