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

Instacation 

Noun.

An entire vacation spent taking and posting pictures on Instagram.

It looked like you had a great time on your instacation.

Instacation by Laurie H. August 4, 2017

instacurity

An excessive concern with one’s social media presence, influence, and/or likeability.

I knew I was suffering from instacurity when I strategically timed when I was going to post on Twitter to ensure the most retweets, once even tweeting from a funeral because I didn’t want to miss that “peak” time. I’m sure my late aunt would have understood.

instacurity by Mr. Instacurity April 3, 2013

Instacall 

Term used in poker referring to the act of "Instantly Calling" an opponents bet. An instacall is commonly seen against a very weak opponent, one that may have exhibited some sort of tell (ie leaning backwards or forwards in chair, checking hole cards), or just against a complete superdonk that has been bluffing at pots with deuce-seven all night. Term also implies that the player has absolutely no respect at all for the raise his opponent puts in.

You: You're damn right that was a big raise, and if you come over the top I'll instacall your lyin ass
Opponent: "I'm All..."
You: "CALL"
*Opponent: (muck)

Instacall by mcchris June 20, 2008

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

Instacunt 

A woman who's emotions turn from happy (or at least normal) to raging cunt in the blink of an eye for no apparent or good reason.

I was minding my own business when she turned instacunt on me.

We were getting along just fine, when all of a sudden she went instacunt on me and told me to get the fuck out.

Instacunt by BizzyBlond October 8, 2009