Someone who consistently and often quite thirstily posts self-photographs on Instagram.
Mary-Katherine posted three photos of herself on Instagram today; therefore, Mary-Katherine is an Instawhore.
by Jacobee24 February 9, 2012
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Generally females in the age group of 12-17 who participate in the social medium which is familiar to hipsters and food fanatics: Instagram. Instawhores compete against each other to take the most revealing photos of themselves. These photos are usually followed-up by numerous amounts of hashtags (such as '#Swag' and '#YOLO').
Jess: Hey Krystal, let's have a competition to see who can take the most amount of pictures of ourselves with barely any clothes on before our accounts get reported.

Krystal: Oh my gosh! That would be so awesome! We're gonna be such Instawhores. YOLO!
by #BrodoSwagginz January 3, 2013
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Someone who posts too frequently on social media and thrives on the attention they get from likes, comments, shares and follows. Instawhores may see themselves as influencers.
There's another post from Kate; she's such an Instawhore. You don't have to post a picture every minute of the day like an Instawhore.
by denver09 January 3, 2020
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She didn't want him but when she realizes he has a lot of instagram followers, she wants to be an instawhore.
Example: Katelyn is such an instawhore, I told her I had 50,000 followers and then she wanted to date me.
by Chinese Chicken Wing October 2, 2014
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