Brock Lesnar would love to tell you about his wild times as a WWE superstar.

He just can't remember all of them.

Lesnar's been making the media rounds since the former heavyweight champion re-signed with the UFC, and was particularly candid during his appearance on ESPN's "Highly Questionable" show on Thursday.

Lesnar opened up about the substance abuse issues he developed during his initial run with the WWE from 2000-04. When asked about the legendary seven-hour flight in 2002 that's been dubbed "The Plane Ride From Hell," Lesnar said a volatile mix of alcohol and painkillers led him and his fellow wrestlers to cause chaos on the plane.

"It was full of booze and Vicodin and being stuck on an airplane for seven hours on an overseas trip," Lesnar said. "What else are you gonna do, besides maybe pass out and fall asleep or get into trouble? And we did both."

One oft-discussed aspect of the story is Lesnar's confrontation with the now-deceased Curt "Mr. Perfect" Hennig. Host Dan Le Batard pressed for more details, but they're lost in a haze, according to Lesnar.

"Honestly, I was drunk and high," Lesnar said. "I couldn't even tell you what happened. All I know is when we got off the plane we got reprimanded and that's it."

Such occurrences were commonplace for Lesnar in his days as a main-event attraction for the WWE. The reclusive athlete struggled with life on the road and the toll professional wrestling took on his body.

"That was the early years of me when I was a young performer in the wrestling ring," Lesnar said. "You go through things in life, such as you become rich and you become famous and you're naive and you're young and to top it all off you're traveling 360 days a year. Although the wrestling is fake, the ring is still a very non-forgiving environment to be in, so you're dealing with a lot of different injuries at one time.

"Not only that, I'm not a man to be on the highway. I'm not a man to be in a hotel room every night. I'm not a man to be in an airplane every day, and it took all that for me to discover that, and to cope with all that was my best friends vodka and Vicodin."

After a four-and-a-half year hiatus, Lesnar is set to return to MMA competition against Mark Hunt at UFC 200 on July 9 in Las Vegas.