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A sudden involuntary jolt that occurs as one is about to fall asleep. Relates to the nervous system. The term most closely relates to falling asleep in a classroom or public setting. However, a shambo can occur anywhere and can be of varying intensity. A minor shambo is surprising yet most often goes unnoticed by bystanders. More severe shamboes can result in anywhere from minor to major bodily injury of the afflicted or those around them.
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