To miss out on something because one doesn't realize it's full potential, usually used with the word 'on.'
Some artists aren't as well known as others, so people stay sleepin' on their music when it be really good yo.
by DarkNova December 18, 2001
Sleeping past 11:30am, at least.
Yesterday i decided to sleep in, I got up at 2pm.
by Someone875875 October 16, 2007
TO LAY IT DOWN...CATCH THEM ZZZZ'S
DAMN I SHOULD BE SLEEPIN RIGHT NOW.
by C C N DJ July 10, 2008
it means sleeping, being asleep, in the act of sleeping
Cant talk fucking sleeping
by Richard Garcia January 29, 2003

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