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
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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 1, 2012
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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 8, 2010
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Defacing your own pictures to look like the Joker from the Batman movie The Dark Knight.



Here are the steps to jokerization:

1. Find a good picture of yourself
2. Copy and paste it into Paint
3. Using the pencil or paintbrush tool, blacken your eyes
4. Using the aforementioned tools, switch to the color red and draw a big smile across your lips
5. Writing "WHY SO SERIOUS" on the picture is optional

Ta-da! Jokerization!

In response to The Dark Knight, many people have jokerized their pictures and put them up on Facebook.
by Backyard Betty July 22, 2008
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To photoshop pictures of celebrities, politicians, or other public figures to display face paint similar to that of the Joker.
Did you see that hilarious .gif with the jokerization of Tyra Banks?
by O.N.T.D. July 18, 2008
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When you ejaculate on a girls face after she asked you not to and ask "why so serious"
My girl ate the last piece of chicken after she knew i wanted it, so when i was getting some head that night I pulled out and gave her a joker
by therealdicktracy January 21, 2012
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Josh said he was going to show up today, but he jokered us instead.
by Andy Anarchist December 14, 2010
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