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1.
Noun ~ a person who waits until around 11 pm to go on facebook and check on the news feed from the whole day and catch up on anything that they missed out on. These kinds of people are the one's who like and comment on everything hours later.
I woke up this morning and saw i had 20 notifications on facebook. I swear that kid is such a nightbooker now that he works until night.
by gleedrunk2378 April 04, 2011
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