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The act of a perverted Scottish science teacher, called Nigel Gilson, swinging his rather saggy ballsack multiple times (to increase momentum) and plopping them on the corner of a students desk.
You won't believe it. I've just had a chemistry lesson with Mr Gilson. And worst of all, he done The Gilson Drop on my desk.
by Torwinn November 11, 2015
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