A condom, in Australia that is not used for a long time, kept mainly in a wallet by teenagers awaiting the right moment to be able to say "I have one!"

There is a direct link of "dust covers" to the event known as "schoolies" where a handful of finishing teenagers are "finished" by older men.
"Bring you dust cover Jeff!"
"It never leaves my side - I wear it on my belt!"
by SquashedDuck March 7, 2016
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