Top Definition
Verb.

The act of posting a picture to instagram, twitter, tumblr, and facebook all at the same time.
Andrew: "did you see that picture of Becca and me I posted last night?"
Julia: "nooo???"
Andrew: "how could you not have? I instatwitumblebooked it!"
#facebook #twitter #tumblr #instagram #instatwitumblrbook
by Andrewcitoooo April 05, 2012
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