Top definition
An old fashioned jipsy curse.

Through delivering careful quantities of bullshit, packaged with a straight face and monotone voice, the victim succombs to believe the individual is talking the truth, knows them better then themself, and is actually there to help.

It's extremely hard to both notice and break the Dyason spell once you've witnessed it.
Earlier this year the Dyason spell was used on a train home from an average night in London. Both the friend he was with and the wider group were put under the spell to believe a "historic-event" occured. On investigation it was later proved to be complete bullshit, yet those under the spell refuse to comment.

It is argued that even the individual using the spell can simultaneously put themselves under it aswell.
by Jim Slippy 007 August 26, 2009
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