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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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Jul 27 Word of the Day
the whale tail is the shape formed when a g-string rides up high over a womans trousers
oh my god look at that butt, her whale tail is showing so high!
by garv November 10, 2003
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