When you are browsing Instagram and somebody comes out of the screen and grabs you.
Person 1: What happened to Frederick? I haven't seen them lately.

Person 2: They got Instagrabbed.

Person 1: Ain't no way.

Person 2: It'll take a while for them to recover.
by Creble October 13, 2021
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Grabbing someone's phone while they are trying to show you a photo or video.
Ryan: Hey Tom, check out this photo I just took of your beard.

Tom: Let me see (grabs phone from Ryan's hand).

Ryan: I hate it when you instagrab my phone like that!
by tmaile November 4, 2013
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