1. Slang used by the elderly for popular photo sharing website Instagram
2. The posting of a picture on instagram
1. Whatcha doing? you instabooking?
2. that's a nice photo you should instabook that
by Greyham June 15, 2013
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(noun) Any application; in particular social media apps. (Often used by the elderly.)
All you kids on you instabooks and your facegrams!”
by MaybeARealWord March 30, 2021
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