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the act of 'huffing' in to a girl's pillowcase after it's been freshly washed.
One might also be tempted to wear the pillowcase on one's head for the hit of the whole case.
Stop hogging that case man. You've been huffing it for ages.

I've got a freshly washed double duvet cover for a two-man full body casing session.
by Angoleiho July 22, 2006