Instachub 

When something is so hot that it give you a chubby (partial erection) instantly.

Seeing Jessica Alba in a 2 piece gave me an instachub!

Instachub by rMace703 May 6, 2011

Instachub 

When a girl posts a hot picture to Instagram bad you become instantly erect.

Daulton: Dude did you see Ashley’s Instagram picture?

Matthew: Oh my god yes it was so hot it gave me an instachub.

Instachub by Lover of instachubs May 23, 2018

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

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

Instacum 

Instacum, when someone is so attractive/sexy that the second they touch you it makes you instantly cum..

As Stacy's mum handed me a drink her hand brushed against mine, this made me instacum.

Instacum by AshAmes August 12, 2012

instacrunk 

Instant Crazy Drunk. When you drink a lot of booze in a little amount of time so that you get MAJOR CRUNK INSTANTLY.

David got INSTACRUNK with Amy and they took their friendship one step further.

instacrunk by Rice U December 7, 2005

Instacuck

When someone receives sexual pleasure primarily from someone else's social media pictures - especially Instagram - with or without having any other kind of relationship with that person, especially when the person who the social media account belongs to is openly in a sexual relationship with someone else. Essentially, when someone cuckolds themselves via another person's Instagram.

"As a popular dominatrix, I have dozens of men every day admit to being my instacucks!"

Instacuck by NovaleeSnow August 30, 2019