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9.
EFF
Acronym for Epic Fucking Fail
Brah, what are you listening to?
Owl City dude they rock!
EFF BRAH! MAJOR EFF!!!!
by Bruce Cockburn December 09, 2009
 
22.
eff
The way to say fuck if you're a pussy.
You fucking pussy. If you're going to cuss then fucking do it.
by Chipface April 09, 2005
 
23.
EFF
Noun. Stands for Eternal Friends Forever. An EFF is a living thing that exists between two people. When an EFF is achieved, it must be nurtured and weened until it is healthy and mature. It brings joy to those that it belongs to and, depending on the longevity of the EFF, it will grant it's master's eternal life.....that is, until it is broken.
EFF can be used to describe the actual relationship or entity...

"Omg, the EFF totally sucks today!"

...or it can be used to describe the participants of the EFF...

"Omg like you are totally my EFF k? Pengers and smeagols!"
by Derk July 07, 2004
 
24.
EFF
e-friends forever
Lisa and I are EFF.
by allison May 30, 2004