A Complete History Of Gerbiling So Far
The act of gerbiling, according to the Internet, is simple. In most instances, it involves a tube up the ***, followed by a gerbil up that tube. Some accounts suggest that the gerbil should be declawed as a safety precaution, but the main gist is to have the gerbil burrowing around one’s anus long enough to bring about sexual pleasure. One might lure the gerbil up the tube with a piece of cheese, or, inversely, light a flame under the funnel to send the gerbil scurrying.
I have seen more than few suggestions that drugs (for the gerbil) might also be helpful. For men, the burrowing of the gerbil stimulates the prostate gland, which can provoke spontaneous ***********. For women, there are options on where the gerbil can be introduced (thanks to one porn video site, I can confirm this).
But whatever the variants, the equipment at its most basic is: Tube. Gerbil. Orifice. The concept is really not that hard to follow, even if its execution might generate other complications.
https://theawl.com/a-complete-history-of-gerbiling-so-far-bdcde3bb5fe#.8qxpigphy
ooops sorry...
I thought it was one of these with the hair squished off, I didn't see the claws!

my bad