Top Definition
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
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.