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exactly what it sounds like. a disk drive that, instead of reading disks, dispenses tissues. usually made by gutting an entire computer, putting a tissue box inside, and pulling the tissues out through the disc drive.
"man, i need to refill my Tissue disc drive. I was sneezing a ton last night and I ran out!" "i couldnt find any tissues to insert into the computer though."

'bummer..."
by thekittykat October 13, 2011
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Jul 29 Word of the Day
Someone who used to be a potential girlfriend/boyfriend, but no longer is.
Tim: Zack, is that your exgirlfriend?
Zack: No, she's an expotential. We never actually dated...
by brownsuite September 24, 2011
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