instabear 

When a guy on Instagram is big (preferably with hair) and large muscles

After non stop posting of his shirtless pics, Jerry became an instabear

instabear by Nickels freeman August 27, 2019

Instahard

For a male penis to go from a state of softness or relaxation to a state of an uncontrollable erection in the penis.
Mainly caused by a beautiful or attractive female when seen or spotted with the eyes.

A combination of the words: Instantly (Without Delay or Immediately) and Hard (Not easily penetrated).

"Man, I just got instahard when she walked in"

"Lola Luv = Instahard"

Instahard by Vinni-V February 16, 2010

Instafart 

A powerful fart, immediately filling the room with a terrible smell.

We were riding in the car and my wife let out an Instafart making it hard to keep my eyes from watering.

Instafart by Willybeee August 16, 2014

Instabam 

Slang for jacking off to someone’s image and comments on Instagram.

Since “pandemic life” has so radically changed our social lives, his favorite online activity is now the Instabam!

Instabam by Dr Bunnygirl September 5, 2020

Instacart 

A grocery delivery service where some stranger drives to your house with the groceries you order on it.

I need some stuff but I have to take care of my grandma for the day. I'll just Instacart it.

Instacart by legal4s April 14, 2021

InstaBeef 

Beef or some form of aggression/hate, between 2 people, formed from an argument or insulting comment on Instagram or any other social media.

I can't believe she made that comment! Now we got #InstaBeef!

InstaBeef by MentallyEvolved September 9, 2018

Instablast 

1) v. to "like" every image in one's Instagram feed in a single, continuous session without regard for the quality of or interest in the content.

2) v. slang term used by millennials to describe a sex act by a male who prematurely ejaculates.

It took me forty-five minutes to Instablast, since I hadn't looked at my Instagram account in several days.

Instablast by joshuaware January 25, 2016