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.