gissum 

a term used when you see your friends and you are just so happy that you feel like you squirted your load everywhere thus the word gissum!!!!

kelsey walks up to tompaul...tompaul says GISSUM!!!!

gissum by Gissum Bob November 21, 2006

Gitsum 

1.) Word used when a certain accomplishment or goal is met.

2.) To tell a person to have sex with someone; usually screamed out loud. Using the word this way can also be used as an insult, pertaining to someone who is with another person.

1.) Nice, I passed my global history test!! GITSUM!!!!!

2.) Jim: Hey Thor, look at Marty helping that old lady across the street.

Thor: Hey Marty, GITSUM!!!

Marty: What's WRONG with you?

Gitsum by ThePrajektProductions January 15, 2010

gissues 

Repressed gay issues.

When a man offers free blowjobs at gay clubs, yet claims to be "100% straight", he clearly has gissues.

gissues by Esteban666 August 28, 2007

gissom 

Semen.
Usually spelt jism.

gissom by OrangUtanUK June 18, 2003

Gissur 

The Holy Nordic Emperor, 2023-2050, legendary emperor of Scandinavia, responsible for the annexation of Germany and France into the Holy Nordic Empire in 2024, which triggered the second golden age of Scandinavian Sociodespotism throughout the Western hemisphere. Poisoned at the age of 72 by agents of the rogue Militant Nordic Publishers Accociation which resulted in the Kattegat Channel Conflict which spurred the fall og The Holy Nordic Empire sixteen years later.

He runs his business like Gissur.

Gissur by Gissur December 6, 2004

gisum 

Seminal fluid. The end result of masturbation.

'The dude was shooting on his gisum'

gisum by deck February 10, 2014

Giisumunchber 

Giisumunchber :(Gii-us-sum-munch-ber) (noun) an informal request made by an overbearing obese person requesting any and all amounts of food from the subject he/she approaches.

Lewis: Eh, giisumunchber?!
Joe: No. I don't have any munch.

Giisumunchber by peeledbanana February 28, 2012