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Hugh Grant is terrified by the Aquaman star's words, but comedian Sarah Millican is left swooning.

It's been five years since Jason Momoa spoke Dothraki as a regular part of his day job, when he portrayed Khal Drogo on HBO's "Game of Thrones." And yet, he was able to spout off two key phrases during an appearance on "The Graham Norton Show" that left one guest swooning, and another perhaps a little nervous.

The language, first suggested in George R.R. Martin's "A Song of Ice and Fire" series, was developed into a functional language by David J. Peterson for the blockbuster series, and it is one that lives on in the show through Drogo's widow Daenerys Targaryen (Emilia Clarke). She uses it mostly to command her dragons to burn people alive and the like. Times are dark in Westeros, these days.

As Mr. Norton said of the Drogos, "I hope they don't bring that bloody dragon."

When put on the spot, Momoa admitted that he does still recall a few lines of Dothraki. He had one to share with guest Sarah Millican, even holding her hands as he spoke the words to her gently. For fellow guest Hugh Grant, though, there would be no hand-holding and the message was much gruffer.

According to a commenter who translated for io9, Momoa whispered to Millican the common phrase he saved for his true love, saying, "You are the moon of my life."

For Grant, the message was a little more severe: "The rain will fall on your rotting skin until nothing is left of you but bones." The Dothraki are a violent and passionate people, though, so he should be forgiven.

Momoa is promising a very different take on the DC superhero Aquaman in the forthcoming "Justice League" film, in theaters Friday, November 17. An "Aquaman" solo film is currently scheduled for late 2018.

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