crimson jack 

An event in masturbation when, during ejaculation, blood is produced from the penis rather than semen.

Guy 1: Dude I crimson jacked last night and I don't know what to do.
Guy 2: What the fuck? get that shit checked out.

crimson jack by Goblin Kng August 20, 2017

eyeless jack 

A cannibal who will eat your kidneys...

Eyeless Jack ate my kidneys.

eyeless jack by Laughing Jeff April 24, 2016

jack leong 

A term used to describe a person with an unusually shifty moustache, deep radio laugh and a tendency to awkwardly stumble through life, deeply engaged in EDM and other pursuits.

Guy 1: "Long Schlong Jack Leong is doing his radio laugh again!"
Guy 2: "Where? I love the sound of his silky voice?"

jack leong by LEONG May 28, 2014

Jack Marston 

The avenger of the avenger of the great Arthur Morgan

Jack Marston avenged John Marston who avenged Arthur

Jack Marston by Ecksd July 22, 2019

Iron Jack 

Australian slang for drug resistant venereal disease, usually Gonorrhea

That bastard has a case of iron jack , don't go anywhere near him.

Iron Jack by pseudonym@pseudonym September 1, 2017

Jack Stauber 

an underrated YouTube musical artist who makes content that can be compared to your brain on drugs

jack stauber is best boi

Jack Stauber by subscribe to pewdiepie, kids February 1, 2019

Jack Cake 

A delicacy made up of smegma and cake batter, often served along with Goldman Pie.

I had a the greatest Jack Cake at that new bakery down the block, I got a free eclair too!

Jack Cake by ZasterBlaster58 March 22, 2019