To sleep later than usual, either by accident or deliberately due to the weekend or another event that alters scheduling.

Also, a killer song by The Postal Service
I don't have school tomorrow, I'm thinking of sleeping in.
by DemonNick February 17, 2005
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To not pay not that much attention on something / someone.
"yall are sleeping on ..."
by Badguyb April 22, 2017
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You have been awake for 18 hours and are now viewing this useless definition of sleep. You are very tired and your brain is not functioning at its normal capacity. The bags under your eyes are starting to weigh you down. It's 1:30am and you have to get up at 6:30am for work. Another coffee wont help you now...
Turn off your computer and get some sleep you net junky!!
by devo February 04, 2004
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A drug that everyone can't resist taking.
"Man I need like, 16 doses of sleep. Hook me UP!"
by xmancrushmonday April 11, 2015
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