A 'rude word' was spelt out on Countdown earlier this week, with a guest smirking over it while Rachel Riley managed to keep a straight face on the Channel 4 show.
The latest episode saw reigning champion Quinn Bartlett compete against new contestant Leome Francis - with them taking on the iconic letters round and the numbers round.
Rachel, 36, placed a selection of vowels and consonants on the board for the first round, with Quinn and Leome both thinking up possible words whilst against the clock.
