The actor and activist spoke out about the Republican nominee and also joined Twitter while visiting The Late Show With Stephen Colbert

Sean Penn likened voting for Republican nominee Donald Trump to “masturbating our way into hell”, while stopping by The Late Show with Stephen Colbert on Tuesday night.

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Penn appeared on the program to promote the absurdist comedic audiobook he narrated, Bob Honey Who Just Do Stuff, written by Pappy Pariah. After recounting a long-winded tale of how he came on to the project, conversation veered following the commercial break to Monday’s presidential debate between Trump and Hillary Clinton, which Penn said he didn’t watch because it was more of a “social debate”. “I don’t think there’s a political debate going on,” he said.

Likening how Pariah described the current election in the book to his own views, Penn said: “There are two options: either you can decide to divorce yourself from loving your children and piss on a tree and show that you have the power to piss on a tree.

“Or you can go out and vote in a very big way for someone like Hillary Clinton – who then you can challenge and support which is the only way that any kind of president can have any success – and you stick it out for four years, or we can just masturbate our way into hell with a guy who looks like the only blond magician.”

“If you’re referring to Trump, I don’t think he can masturbate his way into hell because his hands [are] too small,” joked Colbert.

“Proportional match,” responded Penn with a smirk.

Elsewhere during the visit, Colbert succeeded in getting Penn to join Twitter by having the actor tweet from a pre-made account. Penn confessed to not knowing what a hashtag was when dictating his first tweet to Colbert. “It’s the future – it’s how we communicate,” instructed Colbert. After a drumroll, Colbert revealed Penn’s inaugural tweet:

Sean Penn (@imseanpenn) Pappy, where r ya?#BobHoney

Penn was last heard onscreen voicing one of the characters in the summer animated comedy The Angry Birds Movie. His most recent directorial effort, The Last Face, debuted at the Cannes film festival in May where it was widely panned (the Guardian’s Benjamin Lee called it “a staggering misfire for all involved”.)