Geffan 

The art of masturbating while lying on your back, your arms bent under your legs (around the back of the knees) and grasping your penis with both hands. You only need to stroke with one hand, but it is more legit with two.

Guy #1: So did you start your Yoga class yet?
Guy #2: Nah, I just geffan.

Geffan by Apricocklover August 29, 2009

the gelfand

when playing a game of 10 cup beer pong, the cup in the absolute center is called the "gelfand"

(while playing pong, someone makes it in the center cup) random person says: "the gelfand!"

the gelfand by its the beast February 12, 2009

Geffend

An idiot of the first degree.

'Citing!

Person 1 runs into a tree repeatedly for an hour.

Person 2 points and says "What a geffend!"

Geffend by diskodoll March 19, 2007

Geffa 

A sweaty Iranian spice dealer. Used to offend and/or shout abuse.

Dan: "GET OUT MY WAY, YOU FUCKING GEFFA."
Steph: "Nah, he's not sweaty enough to be a geffa."

Geffa by Gingertelli July 22, 2011

geffon 

A very talented strategist.
Dave Geffon is a counter-strike player on Team3D known for his strategies.

Geffon's strategies own my ugly mother!

geffon by Branden AaseN June 29, 2003

geffen 

someone who lives in a cheffen, has 2 beffen, and likes to go kerpleffen'

geffen oren is a good example of a geffen

geffen by AJ July 17, 2004

Geffen 

A really hot boy that is selfless and just completely perfect in every way. This is the dream boyfriend- he’ll know exactly how to care for you and make you feel better. His smile will light up the whole room. You’re blessed if you know a geffen.

You’re dating Geffen? Damn you’re lucky girl!

Geffen by cherryblossom34 May 4, 2019