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The act of Facebooking while sleeping, similar to sleepwalking.
Dude i'm pretty sure I was sleepbooking last night, i liked your status at 4:30 a.m.
by getnrealnwv May 12, 2010
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to Facebook instead of sleep even though your eyes are heavy and you will most likely fall asleep with your phone on your chest with the Facebook app open.
L:Why are you posting on fb rather than taking that nap you told me you were taking?
T:I'm sleepbooking
by Misstracid September 05, 2015
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