Countdown’s Rachel Riley left red-faced after realising her very rude letter combination (video)

Countdown's letter board often leaves the host a little embarrassed after it spells out crude or funny words.

And on Tuesday's episode, it happened again. Rachel Riley was putting the letters up on the board as they were being chosen by the panel when it included an unfortunate combination of letters. At first she didn't quite clock on that it spelled out C - L - I - T - E - A - S - D. Cliteasd. https://www.youtube.com/watch?v=8ChX7XRr1Ok But Twitter wasn't about to let her get away with it and after receiving a large number of schoolboy tweets, she knew something was up. It wasn't until a follower sent her a screengrab that the penny finally dropped... https://twitter.com/RachelRileyRR/status/712320358624395265