1. noun. Danish Film director. Known for his controversial filmography, such as Antichrist and Nymphomaniac, as well as co-founding the Dogma 95 movement with fellow Danish Director Thomas Vinterberg.
2. verb. When a joke backfires because of the terrible delivery. Originated from Trier's infamous "I'm a Nazi" speech at Cannes 2011.
Did you see The new Lars Von Trier film that pissed off everybody, once again?
"I heard Tommy got booed off stage at his stand up show last night. What happened?"
"You haven't heard? He Lars Von Trier'd one of his bits."
"What exactly happened?"
"He thought denying Armenian genocide with a Turkish accent and a dead-pan voice would be funny."
"Silly Fuck."