A submissive who enjoys being restrained is called a rope bunny. They don’t have to be restrained by rope. Chain can be used or spreader bars, items of clothing or handcuffs. A rope bunny enjoys the constriction of restraint.
A rope bunny may really enjoy rope. The feel and the constriction as well as the artistic value of the ties. They may enjoy being suspended in rope too. There are all kinds of rope, with different sensations from soft to scratchy. A masochistic rope bunny will enjoy extra pain with their restraint and may like to mix restraints with impact play.
Some rope bunnies are very into the artistic element of rope. Enjoying being part of shibari and kinbaku rope ties. This kind of bunny in particular will need a rigger to play with, as it takes time and practise to tie in these artistic ways. Other rope bunnies are more interested in the bondage element. Not really bothered about how they’re restrained, just that they are.
Rope bunny is an all-encompassing term for a submissive who enjoys being controlled by restraint. This can be purely a kink thing, or it might be a sexual turn on too. Bondage play doesn’t have to be sexual, just like any other BDSM play it can be very satisfying on it’s own.
As with any classification of submissive there are many different preferences a rope bunny could prefer. Some may be very much into the feel of cold chain, others may enjoy the ungiving nature of wooden stocks and pillories.