When DeGeneres asked Theron for her side of the story, she told the host: "I just don't get it. He's literally going around saying that I had the best time of my life.
"I like a little more movement in my men," she said. "It looks like a forceful kiss. It looks like I'm assaulting his face with my mouth."
When DeGeneres recounted Theron's comments to her co-star, Diesel leapt up from his seat three times, walking around the stage and calling to the audience.
"C'mon, guys! Do I look like a dead fish? First of all, you don't come on Ellen, with the wonderful animation of Finding Dory, and compare me to a dead fish. Right or wrong?"
The Fate of the Furious has been a box-office success and is expected to surpass earnings of $1 billion this week.