Findings:

• Running joke
• joke
• inside joke
• -um joke
• Why women wear makeup and perfume
• The funniest joke in the world
• Daleks and stairs
• Polish jokes
• That was a joke, son.
• Dead baby jokes
• potato jokes
• Golf jokes
• private joke
• that old Philip Glass knock knock joke
• Just some more jokes from the Necronomicon
• Pythagoras' Joke
• violin jokes
• viola jokes
• saxophone jokes
• Fuck 'em if they can't take a joke
• Batman: The Killing Joke
• A joke about tax collectors
• the bad conductor joke
• It's a Joke, Joyce
• Frog experiment joke
• Leprechaun Joke
• Stoner Jokes
• A Short Guide to Comparative Religions
• Gentile jokes
• Sexist jokes
• The "No soap, radio!" joke
• The Infamous Juan Joke
• The Most Disappointing Joke Ever
• Gorilla Joke
• A Cold War Joke
• Pirate jokes
• SI prefix jokes
• Fax machine practical joke
• A sexist joke I'm allowed to tell, due to being a woman
• Good practical jokes
• Declan the Humble Crab
• limbless torso jokes
• Dorm practical jokes
• The Big Joke Game
• That Joke Isn't Funny Anymore
• joke carbon dating server
• CowboyNeal joke
• When Running Jokes Go Bad
• dirty joke
• presidential elections are a joke
• bad Zentraedi name joke
• Navy Newbie Jokes
• impractical jokes
• diversity training is a joke
• The Full English Breakfast joke
• car joke
• Unfinished joke
• Butcher dance
• The sandwich joke
• American joke
• Drummer Jokes
• Henry Ford vs God
• How to use the alarm gates in retail stores for practical jokes
• I Started a Joke
• practical joke
• piano jokes
• The peg-legged pig
• physics jokes
• Monk jokes
• Irish jokes
• Jokes that will send you to hell
• the great practical joke feud
• Joke: Rivals from Japan and Germany
• Dad's "Joke"
• Essential dirty jokes
• Empire State Building Joke
• a medieval Welsh joke
• The Traveling Salesman joke
• The Joke
• Heaven joke
• Shortest mathematical joke
• Making jokes about The Pope
• The Drunk Joke
• Celebrity knock knock jokes
• Doctor jokes
• Mother-In-Law Jokes
• The Priest Joke
• A very mean bar trick
• Psychology/Biology of a joke
• Divide-by-zero joke
• The World's Worst Knock Knock Jokes
• Zombie baby jokes
• A joke about dealing with people
• Sardarji Jokes
• Punk jokes
• Truly Tasteless Jokes
• Elephant jokes
• Czechoslovakian jokes
• Bad jokes and the nature of racism
• Jokes and their Relation to the Unconscious
• Engineering jokes
• The Wikipedia Joke
• The Zebra Joke
• life is a joke (user)
• World's oldest joke
• Dave Award for the Funniest Joke of the Fringe
• The Old Texas Joke
• This is not a joke. It won't be easy. We will rule the world.
• joke (user)
• 100 Dollar Joke
• Dave Award for the Funniest Joke of the Fringe 2009
• The Cosmic Joke
• Knock knock joke
• Jokes (category)
• Dirty Jokes (category)
• Life's Little Jokes
• This is no joke; I always thought it was a company that made trench coats.
• Cockneys And Their Jokes
• Dogs Don't Tell Jokes
• Killing Joke
• Weesper jokes
• Episcopalian jokes
• The old joke about the shopkeeper in the desert
• HMS Black Joke
• Menstruation jokes are NOT funny. Period.
• multilingual jokes
• poop and dick jokes are an important diagnostic tool
• dad joke
• A joke in the way that we rust
• This is not a joke, so please stop smiling
• Explaining a joke is like dissecting a frog. You understand it better but the frog dies in the process.
• Sick Sad World
• sick fuck
• sick
• I Feel Sick
• The Sick Rose
• Eating in the morning makes me sick
• Sick: The Life and Death of Bob Flanagan, Supermasochist
• sick day
• that can made you sick
• Beauty and misery: A sick trend
• Experimental treatment for sick hamsters
• Dammit, I am so sick of reading about other noders enjoying human companionship
• Spike and Mike's Sick and Twisted Festival of Animation
• The quality of relationships with people when you're sick
• The sad thing is, if you get her you'll be sick of her in a year
• sick as a dog
• The sixth sick sheik's sixth sheep's sick
• Sick Boy
• Weird foods your parents gave you when you were sick
• sick buildings
• There's nothing sadder than an unemployed stripper with a sick car at Christmas time
• Oh, sick I am to see you
• ECG Machines in university sick rooms
• sick pleasure
• The Sick God
• BDSM is the sign of a sick society
• Sick Students and Kraft Dinner
• Pretending to be sick in order to avoid your duties
• sick humor
• Sick Boy (user)
• I am half sick of shadows
• I'M SICK OF ALL YOUR RULES (document)
• A devil sick of sin
• So sick my follicles are crying out in pain
• Sick (user)
• Junk Sick Apocalypse
• Beautiful and sick, like oak apples
• The Sick Web

If you Log in you could create a "sick jokes" node. If you don't already have an account, you can register here.