Instalimp 

The act of being completely turned off or killing the moment.

The second I heard that she slept with my best friend, I went instalimp.

Instalimp by P01ntb1ank July 12, 2009

instalike 

When you see a status on Facebook, and you like it within one minute of its posting. Can be conjoined with megalike to form the megainstalike.

John Doe - I like pooping.
Jane Doe - omg hahah *instalike*

instalike by poobicus October 26, 2010

installment 

part of a series (of payments, books, articles etc.)

"When's the next installment of Harry Potter due to come out?"

installment by Kitty August 10, 2004

instaclipse

When someone posts a photo on Instagram directly after you post. Thus, said person bumps your photo from the top of the Instagram feed, eclipsing it with their own.

Kyle: Hey man. Did you just post on Instagram?
Eugene: Yah go check it out! I posted it two minutes ago.

Kyle: Oooh looks like Matt just posted one a few seconds ago. I had to scroll to see your photo.

Eugene: Damn!!! I cant believe Matt decided to instaclipse you!
Kyle: Sucks man.

instaclipse by Instaman1030 November 15, 2016

instalmentally 

Nigerian-style adverb usage of the INSTALMENT.

He pays back the loan instalmentally.
We will redeem our pledge instalmentally.

instalmentally by Boskine February 7, 2018

instanip

When ones nipple is hardened at an instant.

Yo bro I saw a girl walk out her apartment today and it was so cold she instanipped and almost cut through her shirt.

instanip by Tigergoroar September 15, 2013

instalicious 

When your photos are looking so prime they will make you an instant influencer on Insta

Damn Mara, that pic is instalicious

instalicious by You know what it is June 5, 2019