Insta-fail 

To fail instantly by your own words when you try to comeback in an argument. (Combined from the words Instant and Fail.)

Bill: Joe, I still think that Cartoon Network has the best Cartoons.

Joe: Say what? Theres Nick, Disney, PBS Kids......

Bill: You watch PBS Kids?! Insta-fail.

Insta-fail by Doubledome July 2, 2007

instafail 

immediate fail within 0.01 seconds of trying

law class = instafail

instafail by mynameisbender February 4, 2010

instafail 

The action of failing instantly at a tried action.

For instance, the act of not putting sage into the email field, and then posting will amount to an instafail, as the poster has failed instantly at saging.

Other instafail incidences can be seen as linking to ebaumsworld, reffering to a picture of a cat with text on it as a "lolcat", or any other commonplace newfaggotry action that takes place on the internet.

Instafailing is not limited to the internet though, any action that can be perceived as failing at the moment the action is attempting can also be seen as an instafail.

Person 1: hey check out this video from ebaumsworld! its halarious!
Person 2: instafail. don't talk to me

instafail by rabid9797 January 11, 2009

Instafail 

A word protaining to Nazi Zombies in CoD WaW, where someone gets instakill, but still (noobishly) manages to get killed by a large number of zombies while the powerup is still active.

CoD: Instakill!

Player: OMG I still died????

spectator: Dude, you just got an Instafail! you suck.

Instafail by pr1nn13s September 16, 2009

instafamily 

The result of having three or more children at once.

Bob's wife had triplets, and now he has to trade his car in for a minivan to fit his instafamily.

instafamily by raymo03 August 2, 2007

Instafair

A type of affair where your significant other obsessively checks the Instagram of someone they don’t know.

Did you hear that Brian and Michael broke up because Brian was having an Instafair with an underwear model

Instafair by JavertRobare September 1, 2018