The act of arriving at a destination and running to the computer in order to check for your messages, comments, picture comments, but not blog comments on myspace, and then checking for new notifications and friend request on your facebook. Spacebooking can occur by yourself or with others. Spacebooking is highly addictive and can cause cancer.
-ETHAN! GET OFF THE FUCKING COMPUTER I HAVE TO START SPACEBOOKING.
-Ryan, quit your spacebooking so we can go get some chicken