wiffle bag

the bag that would or could hold wiffle dust

see wiffle dust
"this mattress encostment is actually just a wiffle bag for all the good it does".
by BedBugBeware March 01, 2011
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mattress encostment

Something you put on a mattress to encase it which is more expensive that it needs to be, often sold under false pretense as a prevention of a problem when a simpler more cost effective solution would have the same benefits.
Sorry I can't party in Vegas I got bitten on the mattress encostments and my card is maxed out
by BedBugBeware March 16, 2011
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