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When one is sleeping in class, and his/her head bobs up and down at random, providing a source of distraction and entertainment for everyone else in said class.
Hey, did you see that kid slow-motion headbanging in Math class today? What an idiot.
by ohmylanta! May 24, 2009

Words related to Slow-motion Headbanging

being an idiot falling asleep napping nodding off sleeping