Actor Matt Damon says he only recently stopped using the homophobic “f-slur for a homosexual” after his daughter explained it was unacceptable. Damon told The Sunday Times she had written him “a very long, beautiful treatise on how that word is dangerous”, after he used it in a joke. He said the derogatory term for gay men “was commonly used when I was a kid, with a different application”. “She left the table,” the star recalled about the family disagreement. “I said, ‘Come on, that’s a joke! I say it in the movie Stuck on You!’ “She went to her room and wrote a very long, beautiful treatise on how that word is dangerous. I said, ‘I retire the f-slur!’ I understood.”