Georges St-Pierre couldn't bottle up his deepest, darkest secret any longer. 

Speaking with Joe Rogan on episode 28 of the JRE MMA Show, St-Pierre discussed some recent allegations from Nick Diaz regarding their 2013 matchup at UFC 158. 

Diaz claimed St-Pierre poisoned his IV—among other things—and St-Pierre took his opportunity with Rogan to finally come clean. 

"I gotta confess, Joe. I gotta confess," St-Pierre said. "...I was so scared of fighting Nick Diaz, so we poisoned his IV. But he survived, so I was even more terrified, you know?" 

The former UFC welterweight and middleweight champion wasn't done there. The depth of his cheating ran deep in this case, and he laid it all on the table for Rogan and the countless fans watching at home.

"All the athletic commission was on my payroll, so they [tricked] the weigh-in and I made it," St-Pierre said. "And it went through, so I was even more terrified. So the alien[s] abduct[ed] me and they put a gamma ray to increase my strength like the Hulk, like a performance-enhancing drug. And the fight was still happening, so right before I put some glass and cement in my gloves to make sure. And still, I had a crazy hard fight, so I gotta confess." 

Wow. What a story. It's amazing what goes on behind closed doors in the world of MMA.

If you have no sense of sarcasm, St-Pierre wrapped up the discussion by actually addressing the claims.  

"It's completely insane, you know?" St-Pierre said. "He said for my fight that I poisoned his IV, that I was on steroids, that my wrap was wrong, and he said also... the weigh-in, I didn't make weight, I tricked the athletic commission. It's just funny. I think he has a problem of conspira[cies]." 

Watch the full episode below (time stamp 1:03:45 for the Diaz talk).