Hoffman was actually nowhere near the dinner that netted the Obama campaign a cool $15 million, but some of his followers bought in to his hilarious satire.
"I was just sitting at home, bored, and wanted to see if I could trick any morons into thinking I was actually at the Obama/Clooney dinner," Hoffman told Mashable. "To do it, I had to 'get inside the head of a moron.' This was depressingly easy for me."
He added that watching responses fly in from across the world asking for details about the dinner was "insane."
"And watching reporters report my tweets as 'fact' was sad," he added (at least one publication fell for Hoffman's gag, but has since corrected its error). "And that's saying something, since I'm as sad as they come."
Mashable collected the comedian's fake fly-on-the-wall tweets in the Storify below:
[View the story "Comedian Fake Live-Tweets Obama Dinner at Clooney's House" on Storify]