A person on Instagram who is only interested in their own follower gain. Usually narcissistic teenage girls who secretly think they'll be the next Kylie Jenner.
Jane: I'm gonna follow this fake whore so she'll follow me, then I'll unfollow her and hope that dumb bitch doesn't find out.

Jane is the example of an Instabitch.
by YoungRichGod January 4, 2016
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Low T millennial whose sole function in life is to facilitate his girlfriend's Instagram feed by taking photos and placing himself in precarious positions to get that perfect shot. Never appears in her feed.
Is Tyler banging Morgan? No, he's just her Instabitch.
by Rudeboy Johnny June 4, 2019
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A girl who posts on social media about her life problems to her 1000 followers that don't give a shit.
Damn. This girl keeps spamming my page with her problems. What an instabitch.
by The professa October 29, 2014
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When a person starts bitching on an Instagram post.
Ellen: Just ate birthday cake with my friends! So yummy :D
Natalia: OMG, you had birthday cake?! Why didn't you invite me to your party?! You're so mean! I hate you!
Ellen: Jeez Natalia, stop instabitching on all my posts.
by )_Me_( February 3, 2013
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a bi-polar person when they get angry. they go from instacalm to instabitch
look at that bi-polar guy over there hes such an instabitch
by dora tree April 8, 2009
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A man who walks around following his woman with her phone taking photos of her for instagram.
No Dean, that's not the right angle.

Oh bro, Dean is definitely her instabitch.
by tredge June 29, 2019
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