Sometimes the names suggest something completely different. I guess MICKYMOO probably just sounds more like a male name with the MICKY at the beginning.

There's one guy from Best Bets that does the Sydney tips on Radiotab and for some reason he just tends to refer to ALL horses as 'HE'. Believe it or not, even when he was giving his tips on The Oaks (so obviously there was no doubt about gender), he said HE and HIM about all the fillies he mentioned.