J.E. 

To go psycho in a fit of rage. Often stemming from a lack of intelligence. Used to reference the small brain capacity and ignorant rage issues.

Guy 1- That guy totally went J.E. on her mailbox after she dumped him. Smashed it in with his forehead.

Guy 2- What an idiot!

J.E. by mandrake11 April 26, 2009

j.e.w.

acronym for jimmy eat world. punk band from the late 90s.

and the sweetness will not be concerned with me...

sweetness-j.e.w.

j.e.w. by DANglefest June 12, 2008

J.E.F.F 

Justifiably. Effective. Fantastic. Fulminator.
It Is a chainsaw. With explosive charges on it.
That's right, It's Jeff the Motherfucking Explosives Chainsaw.

Clueless individual: Why's that thing called "J.E.F.F"?
JEFF: I'll break into your house and stare at you all night.

J.E.F.F by ThisIsMeHelloLookAtMe December 14, 2022

J.E.F 

Just everyone's favorite

Hey Kris is j.e.f

J.E.F by J.e.f June 22, 2015

J.E.W 

A J.E.W or Junior Enlisted Warrior is a slang term used to describe new players in the unpopular Gaijin video game know as Enlisted.
A J.E.W can be distinguished from regular players by their lack of ability to build Rally Points and Ammunition Crates.

Hey J.E.W, build the damn Rally Point!

J.E.W by WarFrog___935 April 4, 2023

J.E.R.K. 

Junior
Educated
Rich
Kid

Douchebag:Hey,you're C.O.O.L.
Awesome:No,I'm a J.E.R.K.!

J.E.R.K. by waterdude125 March 30, 2011

J.E.O.M.K. 

just ejaculated on my keyboard

when two internet geeks are involved with some sexual act and the male geek blows his load all over the keyborad......that was hot i j.e.o.m.k.

J.E.O.M.K. by D.Krav October 22, 2009