instabro 

People (usually men) who make an instant, friendly, non-sexual connection. The term is often used in larger social interactions when you and your instabro are having an awesome conversation and some bored party-goer butts in: "where do you know each other from?" / "how long have you been friends?"

Bro1: Dude, I'll give you 1000$ if I can bang your sis.
Bro2: Woah, 1000$ - finally someone who *gets me*!
Sis: Hey, what's up guys? You seem to be having quite a chat.
Bro2: Yeah, me and my instabro here are helping each other out.

instabro by Chymera August 26, 2013

Instabro 

A dude who prefers to stalk social media rather than txt.

I know he really likes me as he liked 27 of my pics last night and stops by every bar I check-in at but he never txts me back to hang out. He's such an instabro!

Instabro by Sixx In The City January 13, 2014

Instablock

To block a user (of an internet service, often Instagram) without a moment of thought because of the egregiousness of their words.

Clearly that guy is an obvious troll. I didn't pause a second to instablock him.

Instablock by streetsesquipedalian January 19, 2016

instaboner 

1 a woman who gives you a boner instantly
2 the act of getting a boner instantly

1 "Damn look at that chick she is such an instaboner"
2 " I just got an the biggest instaboner"

instaboner by Zmoney November 30, 2005

instafront 

To front on Instagram ....In other words, to post a picture on Instagram making it appear that something is the case when in fact it is not.

Mom can you take a picture of me next to your Corvette while I hold your money? I'm about to instafront on these hoes.

instafront by J Dolla of North Highlands Ca March 8, 2014

Instaroll 

A party that upon arrival, is rolled by the cops.

"Hey buddy, how was the Jamul party on Holloween?"
-"Weak dude, it got instarolled."

Instaroll by mirk4 November 9, 2009

instabonerific 

It's all in the name. Something so goddamn hot you instantly get a boner. Just one look and BOING!

Megan Fox is totally instabonerific!

Susan Boyle is so not instabonerific....

instabonerific by headbanger32894 August 13, 2009