Since a lot of people don’t seem to read tags and use google, okay: Figging is a sexual practice where someone inserts a ginger root into their or their partners anus. It’s causing discomfort and a burning sensation. The origin of said sexual practice is gingering, something people did in the past (and apparently sometimes still today) to their horses so that they appear more lively and young due to the discomfort in their ass. Which among other things makes them lift their tail. Especially when selling or showing off the horse. I highly condemn the real world practice, because it’s very cruel to a non consenting horse and animal abuse.
The sexual practice on the other hand is another matter. And since Rarity is obviously enjoying herself (see the subtle dripping in the last panel) this is kinda a kink to her.
Also I can see her doing that to herself because maybe she thinks it’s not real beauty until it hurts a little bit. (See high-heels, waxing, and whatnot for real world examples.)
But yeah, basically it was just a reference to figging with a shout-out to it’s origins.
