Warning! Potential spoilers ahead.
“In Star Wars: The Last Jedi I have learned that the horse we used to call “The Space Horse” is actually called a “falthier.” They’re race horses. As we’ve noted previously, Canto Bight has gambling and we used to call it “the casino planet.” Well, the falthiers are high-dollar “race horses” on the world. The beige/brown falthiers were glimpsed last summer during filming on location in Dubrovnik. The head of the horse is sort of like a cross between a tauntaun and and the luck dragon from The Neverending Story.
Last summer a friend in Dubrovnik told us about the filming and sent us some photos as well. This combined with some new information, I have learned that the sequence begins in the stables. Finn and Rose appear to be on the run, chased by men in “luxury speeders” and the Star Wars equivalent of tuxedos or formal wear. Finn and Rose duck into the stables and they’re met by an alien that tends to the stables. Inside there are jockeys too (someone has got to ride the falthiers). Finn fast-talks the guy as they steal the falthier and race away on the stolen steed. They’re eventually engaged in a fight with the speeder and the fancy Canto Bight guys. After they defeat the guys in the speeder thanks to Rose, they ride up into a coffee shop or cafe and meet their contact as scheduled.”
Read more at MakingStarWars.net.