Gekisen 

(Noun)
Origin: Unknown.
Date: Sometime in the early 21st century.
Alias: Geekisen.
Prononciation: Gay-Kee-Sen.
1: A large gathering of young, insecure males where anal sex is often practised upon one another. Rarely will females attend.
2: Comparsition of penis sizes.
3: A male organ.
4: Location where extremely arousing internet URLs are exchanged.

1: "Jesus Christ! They are having a rousing gekisen downtown, I must attend!".
2: "Let us do a gekisen to see who here has the largest penis."
3: "My gekisen is larger than yours Willis."
4:

Rick: "My Word! Where did you get those erotic internet links from?"
Mick: "I attended a gekisen, there were many arousing links to hot internet websites."

Gekisen by The Sender September 29, 2005

Geisendorff 

A male with a penis long enough to fuck his own asshole. Note: must be long enough for actual insertion, cant just touch.

actually Im a Geisendorff so I can and I did

Geisendorff by El Senor 69 April 26, 2011

geisen 

To be homosexual, with long blonde hair, and a lose anal cavity

"Quit being a Geisen and put that cockmeat back where you found it. Also cut your geisen-ass hair and quit being a complete toolbag. Faggot."

geisen by PongoMan October 10, 2007

Geisendorff 

Keeper of the Swiss Goat Village.

He was the long standing Geisendorff on the mountain.

Geisendorff by Urban Corrector Editor September 7, 2018

geisen 

an sailor that roams the ocean while intoxicated

That geisen crashed his drunkass on the rocky cliffs.

geisen by Rajeev Anchan December 13, 2008