THE online anti-fraud tool Captcha is responsible for the names of racehorses, it has been revealed.
Captcha asks users to read random word pairings to determine whether they should be allowed to go to the cinema.
But leading horse-namers have found inspiration in the software, having long exhausted the limits of their imagination and vocabulary.
Horse breeder Tom Logan said: I thought all possible horse names had been taken, except for ones with swears in, and they arent allowed in case the Queen sees it.
But then Captcha made some suggestions, and now weve got Nugatory Reward, Laotians Bong and Rectal Blend.
All 40 of this years Grand National entries were named using Captcha, including Monbeg Dude, Unlubricated Cosmonaut and last years champion, 399446 211.