As reported by The Portugal News, Elon Musk and Michael O’Leary have been arguing online lately, and apparently, their argument is far from over.

“All I would say to Elon Musk is he would have to join the back of a very, very, very, very long queue of people who already think I’m a retarded twat, including my four teenage children,” Mr O’Leary said at a press conference in Dublin, as quoted by breakingnews.ie.

“If he wants to call me an idiot, he wouldn’t be the first, and he certainly won’t be the last to call me an idiot or a retarded twat. But if it helps to boost Ryanair sales, you could insult me all day, every day.”

Michael O’Leary is also “happy to continue the controversy. I welcome the accusation that I’m a chimp; it’s somewhat unfair on the chimp community, but chimp, chump, as long as it increases Ryanair bookings through January, February, and March, it’s all good fun and entertainment.”