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2.
To constantly update your status or post on Facebook during a snowstorm. Normally, because your stuck inside and bored out of your mind.

Also can be used to describe Facebook users who constantly discuss, complain, or post pictures about a snow storm.
Sarah must be snowed in and bored, because she's been snowbooking since the storm started.

The roads haven't been plowed so everyone's snowbooking.
by A Magillacutty February 12, 2010
 
1.
Staying up all night studying for finals by doing lots of cocaine.
I have my books and a mountain of coke, I will be snowbooking tonight.
by Guesswho9911 February 07, 2011