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It's the joke that keeps on giving.

Far from distancing himself from the joke that was at his expense at last month's Golden Globes, George Clooney is keeping the laughs coming.

Last month, hosts Tina Fey and Amy Poehler joked about the actor's taste in women, saying his film "Gravity" was about how Clooney would rather float off into space than date a woman his age.

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Known to appreciate a good joke, Clooney's first stab at getting back at the comedians was to write them a letter on Matt Damon's stationery, pretending to be his "Monuments Men" co-star. Fey and Poehler weren't fooled however and Clooney is still vowing revenge.

"I'm doing something that I'm actually ashamed of, that's going to hurt them," Clooney said Thursday on " Good Morning America." "I'll show you some photos later."

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But "Popcorn" host Peter Travers had another suggestion for the actor: date Dame Judi Dench.

"I tried," Clooney told Travers. "She turned me down. She said I was too old for her."

Clooney was just joking, of course.

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He told Travers that people often mistake his humor for something else.

"We're losing a lot of our irony," he said, "and I think it's because of the Internet."

Check out the video about 10:50 minutes in.