insta-dick 

when a guy goes from being nice to being an asshole for no reason

"Why do you hate Chris?"

"He's never done anything to me.. But he's nasty to my friend so I don't like him."

"Why is he mean to her?"

"I have no idea! He USED to be nice to her... and then one day, BAM, insta-dick!"

insta-dick by kendra_123 January 7, 2010

insta-dick 

Someone who immediately becomes a dick in any situation, no matter the context. There is no build up to this person acting like a dick, its just instant. Instant Dick.

Why are you such an insta-dick?

insta-dick by mhmyep69 April 5, 2022

Insta-dick Move 

The act of following someone, and to unfollow them as soon as they follow you back. Combination of the words Instagram and Dick Move.

Joe: Yo, how you got so much followers compared to the amount of people you following?! You not even a celebrity!
Bob: Oh, I just pull the Insta-dick Move on a whole bunch of random people.

Insta-dick Move by Enderforce March 11, 2018

Instadick 

the male Instagram users anatomy that gets stroked when a woman likes or comments on a users post.

Yo dawg she's been all over my instadick lately likin everything!

Instadick by Authoratorous April 24, 2015

Instadicted

To be instantly accused, charged, found guilty (and sentenced on-site) of something when you were in the process of actually helping somebody (or at least, in the thought process of actually helping somebody) and had absolutely no fucking clue that the good you were actually trying to do would actually come back and strike you down like the actual hand of fucking God Almighty!

Dude 1: Oh shit dawg......I just got my ass instadicted!

Dude 2: What the fuck you be stressin over?

Dude 1: Foo, don't u know we ain't supposed to be doing shit around dis hood cept maybe hangin at dis 7-11......I stopped off and hepped out my homeboy who was givin dis foo some act right who was beatin up his ole lady and BAM! there it it: INSTADICTED!!! at the scene. Shiiiiiiiiiiittttttttt!

Dude 2: Uhhhhh, daim foo...........I guess I'll come visit yo ass in Federal prison den.

Instadicted by the terrorists have won November 22, 2010