To overdose on pills. Or to be fucking one of the Olsen twins most likely Mary Kate! To have an accident-Kind of.
I told Dennis to lay off the pills before he pulled a Heath Ledger!

I told you sir, I never meant to shit on your porch it was a Heath Ledger.
by DC Chapman January 30, 2008
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To get murdered by Michelle Williams, who then makes it look like a suicide.
"Dude, have you seen Reiker? He was supposed to meet me for a brewski, but the faggot never showed!"

"No, man. Didn't you hear? The police found his dead 28-year old Austrailian body in his Manhattan apartment."

"Whoa, what happened?"

"Got Heath Ledgered, man."

"Fuckin' Michelle Williams..."
by Totally NOT Michelle Williams January 24, 2008
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Taking a cocktail of pills with or without booze to get high.
I heath ledgered it last night with a couple xanax and a vicodin before downing 5 martinis.
by Adam Sarroe February 20, 2008
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Becoming the best in a job where everyone expected you to fail.

Comes from the fact that Heath Ledger was universally panned when casted as Joker and ended up giving the most memorable performance for the character until Joaquin Phoenix matched it.
Robert Pattinson is gonna suck as Batman.
Dude, I still expect him to pull a Heath Ledger.
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Pertaining to medication. More or less along the lines of 'pills' in-general. Could be any form of name brand drug used for headaches, minor fevers, minor or major anything you can get symptoms for.

ie. Ibuprofen/Aspirin, Advil, Bayer, TUMS etc..
Barry: I've got a massive headache my friend, got anything for me?

Larry: OH YEAH BROTHER! Take a few heath ledgers in the medicine cabinet. It should do you right up! No-pun intended BROTHER!
by Max [mg] January 29, 2008
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In the midst of doggystyle sex with your partner, the man slowly reaches around and playfully sticks a finger in his ladies mouth. At the last second he puts a finger from his other hand into the other side of her mouth. Give her the devils inch and then pull back as hard as possible on the creases of her lips (creating a joker inspired smile). Whisper to her in a heath ledger voice "Why So Serious?"
1: Best sex ever last night!
2: What was so great about it?

1: I had Heath Ledger Sex.... things got pretty serious.
by hitchmalone February 5, 2010
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Hey! Nice costume.

No, i just showed your mom my Heath Ledger smile
by bleackone July 13, 2010
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