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v. The dancing of an extremely tired, nearly asleep concert-goer, though nodding off the person continues to move to the music.

Common at music festivals due to sleep deprivation, and hours of standing.
Did you see Todd sleep-jamming at the Umphrey's concert? He was loving it.
by sauter January 27, 2008

Words related to sleep-jamming

dance hula-hoops jam band jamming rocking out