A sex doll is a masturbation toy for guys. It’s a fake woman with openings to penetrate.
They are known by various names: inflatable dolls, love dolls, blow-up dolls, dohms and rubber dolls.
There are very cheap inflatable dolls, plastic parts sewn together in the classic position: body straight and legs straight and spread. The most expensive ones are solid body dolls that aren’t inflated. Most of the expensive ones are made in Japan. They can bend into a variety positions, can talk, have vibrators or pumps inside and feel like human flesh. They give the illusion of being real.
The doll normally has three openings in which the penis can be inserted: the mouth, the vagina and anus. It’s comparable to a masturbation sleeve, but then in the shape of a woman.