mudder
- n a racehorse that runs well on a muddy racetrack
- This one's got the heart of a champion; that one has the guts of a mudder.
- Because he is known as a good mudder, odds on Ladysman increased rather than declined when it rained all the day before the race.
- If it creaks a bit at times, its gags go far to redeem it, particularly the Race Day sequence when Greyboy, which Rogers has been training as a mudder, has to cope with a fast .