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The act of placing one or more flatulent events (farts) into a cushioned chair. The hope is that someone sits down on it, and the dust in the chair will fly up and poison the recipient with your flatulent deed.

The plural is used when more than one person sits on the chair and plants said flatulence. This must be done carefully so as not to poison ones self during the process.
(singular) Yo dude, Jerry is being a dick. Why don't you give him a cushioncake. He'll throw up once he sits there.

(plural) Hey guys, lets give cushioncakes to all of the chicks that came over. They will look at each other and think they let one go.
by Vee Jay April 24, 2007
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