A villain of the Batman universe, first appearing in Batman #1 (1940). He is considored to be the Caped Crusader's arch nemesis. His title is the "Clown Prince of Crime".

The Joker's real name is unknown, though according to the first movie starring Nicholson, it might of been Jack Napier. The catalyst of his insanity has different tellings:

Originally a failed comedian, coerced into crime after the deaths of his wife and unborn child. Disguised as the "Red Hood", he failed to steal from Monarch Playing Cards. Running from Batman, he fell into a waste pool by the Ace Chemical Processing.

Surving the accident, it coloured his hair green, bleached his skin white and deformed his mouth into a red smile. Using eccentric weapons like acid spilling flowers and static joy-buzzers, he sadistically amuses his victims before he murders them. Other schemes include bribery and terroism.

The sidekick and former pyschiatrist of The Joker is Harley Quin (a.k.a Harleen Quinzel). She accompanies and supports her love interest in his crimes in Gotham City.
"Do I look like I'm joking?"
by Anonymous December 18, 2004
A sexual act when a woman has intercourse with a man, while she is at the end of her menstrual cycle, and then the man ejaculates semen and blood on her face turning her into Heath Ledger as The Joker. The man then asks: "Why so serious?!"
"I woke up this morning with The Joker."
by Sweet Cinnamon Bunns August 01, 2012
When you apply period blood to both sides of your cheeks to make your appearance resemble that of Heath Ledger's character in the Batman series.
You can obtain the joker by using your fingers to smear on the blood or simply perform cunnilingus with vigor.
by John Hammond April 16, 2012
When you place your penis in your girlfriends mouth and drag it down her cheek. Bonus points if you say " Why so Serious? " before you do it.
Last night I introduced my girlfriend into " The Joker"
by KyleLawsonTV January 22, 2012
The Joker is when you fuck a girl who is on her period. You then take your bloody dick, cockslap her in the mouth and ask her "Why so serious?".
I gave my girlfriend The Joker last night during sex.
by Roam/Bumble Gums March 17, 2011
The joker is when you cum in a girls face and then after her make up smears and she starts crying you ask her..."why so serious?"
John: yo dude what did you get into last night?

Rusty: I totally used the joker on that girl from the bar last night!

John: Ha ha you are the man!
by Princes Donna L October 24, 2010
The act of having sex with a girl who is a virgin or on her period and after you pull out smack her across the face twice to make what looks like the joker scars from Batman with her blood from her vagina.
Bill: I pulled off The Joker last night, I had to surprise her with it though I knew she wouldnt go for it.

Jim: No shit dude! thats pretty nasty you cant blame her
by UncleGameTight September 03, 2009
When a guy is about to nut on a girls face and he farts instead. She starts to laugh, and then you cum all over her face.
I was at a batman convention and a guy did the Joker. It smelt so bad, but it tasted so good.
by 407princess May 07, 2010

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.