EEFI

Essential Elements of Friendly Information (EEFI) are critical aspects of a friendly operation that, if known by the enemy, would subsequently compromise, lead to failure, or limit success of the operation, and so must be protected from enemy detection.

The location of the water balloons was an EEFI to operation "Soak Suzie." Hobbes failed to watch his EEFIs and divulged where Calvin stored the water balloons during a tummy rub. The mission resulted in utter failure.

EEFI by AZ Boomer May 20, 2013

Eefis 

An Eefis is everything and anything you want it to be. Anything from a super star, to a 3 on 3 basketball team.

# 1: What exactly is an eefis?
# 2: Eefis is EVERYTHING

Eefis by 3 on 3 basketball November 23, 2006

Eefie 

1. a name given to a complete dumbass that oftentimes believes everything that they are told even when presented with information that proves they are wrong with hard facts.
2. a person that reaches a certain level of idiocracy and immaturity so much that it affects those around the person dramatically.

Lovetta is such an eefie for thinking that urbandictionary was a real dictionary and could actually be used and classified as something she "researched."

Eefie by J Spyda Moore February 16, 2008

eefinheimer 

It is term used by fucking tards

"bro i eefinheimer" "fuck you"

eefinheimer by my name is yoshikage kira March 13, 2021

Eefin (Walmart edition)

Literally not the cutest person ever. Anyone who says otherwise is automatically saying no other human has ever existed. I know what you're thinking, and no I did not write this to prove a point. This is officially written by the legend-dairy John Decengre III of New Jersey.

To the person reading this (yes this actually has a purpose),

No need for any further explanation, you're officially ruled cuter by the public, judge, and jury. I rest my case. ;)

-Eefin (Walmart Edition)

Eefin (Walmart edition) by Eefin (Walmart Edition) March 22, 2021

eefin.mp3 

one of the coolest people on tiktok that’s also an editor.

“hey! have you seen eefin.mp3’s video on tiktok yet?”

eefin.mp3 by lucydeeznuts June 4, 2021