Moby turned up on Friday’s “Real Time With Bill Maher” to share a whopper of a story about the time he says he rubbed his penis up against Donald Trump.

Needless to say, the musician and animal rights activist was drunk at the time — and Trump was years away from becoming leader of the free world.

“There was one night, it was about 2001, and I was out at a party and I was very drunk,” Moby told Maher, before adding that he’s been sober for 10 years. “I was with some friends and they were telling me about a game they used to play in college called Knob Touch.”

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As Moby explained, both in his new memoir “Then It Fell Apart” and on Maher’s show, “Knob Touch is when you take your flaccid penis out of your pants … and you walk around a room and you brush your flaccid penis up against people indiscriminately — it’s not sexual, there’s no gender involved.”

“It’s like Biden,” Maher interjected. “It’s not sexual, it’s just inappropriate.”

Then Moby continued with his story: “My girlfriend at the time dared me to Knob Touch Donald Trump. So I’ve only rubbed my flaccid penis against one person in the entire world and that man is currently on a golden toilet in the White House tweeting about something.”

Watch the full clip above.