Top Definition
When, having taken a sickie or made an excuse that you are ill when you are actually well to avoid work or a social event you then become ill soon afterwards and have to go to work or event when ill.
Woman 1"Why is Bill at work today when he is obviously ill?"
Woman 2 "Oh, he took a sickie a week ago to go to Glastobury festival and now he has a boomerang sickie. That's Karma for you"
by Mez1 June 05, 2011

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