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The practice of bouncing, much like a yoyo, into and out of sleep. A yoyo dozer wakes quickly, and goes back to sleep just as quickly. It can be a way to pass time if bored, but yoyo dozing can sometimes leave you feeling dazed, sleepy, and oddly tired once you get up.
"Either sleep or get up, stop yoyo dozing."
by defiantdefiner April 13, 2010