Countdown co-host Rachel Riley may be one of the brainiest people on telly, but she isn’t immune to the hilarious charms of a naughty word or two.

Since its inception, Countdown – the Channel 4 game show in which contestants must spell words using a combination of nine random letters – has seen all manner of rudeness spelt out on the board.

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But since Riley took over the role of steward of letters and numbers from Carol Vorderman in 2009, it seems Countdown’s filthy word count has only increased.

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Over the weekend, Riley tweeted some of the rudest words spelt out by contestants in the ten years since she joined the show.

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Some of Riley’s best examples include ‘sugar twat’, ‘cottager’ and the mysterious ‘cum budgie’.

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Also making an appearance on Riley’s Best Of are the less X-rated ‘no panties’, ‘phallus’ and ‘aroused’.

2009 marks Riley’s tenth year in charge of numbers and letters at Countdown.

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The Oxford graduate has also co-hosted the late-night 8 Out of 10 Cats Does Countdown since 2012, where the rude words are spelled with greater frequency.