EFS 

EFS is an abbreviation for Excessive Facebook Syndrome. The term is used to describe people with hyper activities in Facebook, that even can bother them to function.

Common signs are such excessive use of computer, laptops, phones and all mchines that is easily connecting to the internet. Some symptoms are insomnia, fatigue, eyes problems, less productivity, having hard time to study or do work and complaining about oneself life.

Unlike Excessive Facebook Syndrome ,EFS, Facebook Deficiency,FD, has no complications and it is easily treated.

EFS by Allawee August 25, 2010

EFS 

A term used by many skydivers. Simply, it means, "Eat, Fuck, Skydive."

Hence the acronym, EFS

Hey Mark, blue skies! What's up, Kevin? Nothing but EFS, brother.

EFS by HatefulPilot August 24, 2011

EFS 

The phrase used by the tools of the southeastern CT scene.

"EFS!, I'm a tool! I'm a tool!"

EFS by DILLfrshtildeath December 5, 2007

EFS 

eat fucking shit. originally thought of by Eric Ross of And Then Came The Waves, it was a joke. it was thought of in the car on the way to an If I Had Eyes show, poking fun at their song, "Loose Lips Sink Ships" that started off "GET FUCKING BENT ARGHHKJHDFGLRTBGR BREE BREEEEE!!" eat fucking shit was born.

life is pungent, so EFS.

EFS by electro ethan ultra July 17, 2007

EFS 

a.k.a. - Extensive Flirting Syndrome

noun. a disease in which the sufferer experiences uncontrollable giggles and a plethora of positive behavior towards a particular target, usually of the opposite sex.

"My bestfriend is suffering from EFS."

EFS by Dominooo May 16, 2006

Cheefs (Chee-efs)

To show thanks or appreciation, new spelling and pronunciation of the masculine alternative to ‘thank you’

Cheefs (Chee-efs) for all your help

Cheefs to you

Cheefs (Chee-efs) by I hate Seagulls November 22, 2025

Efstathia 

A girl whose name no one can ever pronounce. This tends to lead to a large array of nicknames for this girl. She is gorgeous, intelligent, and unique, making her quite exotic. Although she will always be annoyed with the difficulty that people have pronouncing her name and the confusion that goes along with it, she will rise above and be the most successful one of them all.

"That girl is perfect. She must be an Efstathia."

Efstathia by Felina Mia December 2, 2009