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(v.) To run fast. As book it, but specifically for running. Shortened to book in some cases.
"The cops are on the way; get ready to book up if there's trouble!"
by Super Ghoul February 11, 2005
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Hooking up with an "old friend" for a booty call via Facebook.
I friended Jenny last week and I've been trying to book-up for the last three days.
by suspiciousnick May 17, 2010
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when you meet a chick and instead of hooking up with her you go home facebook friend her and masterbate to her photo.
Dude, those chicks where so hot im going home to book up to them
by hp45 ruckus January 26, 2010
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Like "to look something up", but on facebook
Stan: I heard a new guy called Bob Billson is working here from tomorrow.

Lee: Cool, I'll book him up tonight.

Stan: Book up?

Lee: Like look up, but on facebook
by blu3wat3r May 23, 2010
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A group of friends on Facebook (social network) that are planning to meet up and use Facebook chat.
Facebook user 1 - Hey man gotta roll but lets "book-up" laters
Facebook user 2 - word!
by marantwat March 18, 2009
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"I walked in on my mom and dad while they were bookuping, and I must say that my dad's ass was so fucky hairy while my mom's titties sagged like a nutsack."
by bojangles bitches May 23, 2006
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