@Mimishu1995, a rag doll is just a cloth doll. They were very common in my parents’ childhood and even in mine. It just means they’re made out of cloth, and usually homemade—because so much was homemade. Clothes were sewn at home, and the little leftover scraps (“rags”) could be used for making toys and stuffing them.
And making clothes for them. Little girls used to practice sewing (an essential household skill) by making doll clothes. A rag doll does not have to be naked.
Raggedy Ann dolls are kind of paradoxical because the doll in the original story by Johnny Gruelle is handmade. The crucial incident is that when the doll accidentally falls into a bucket of paint, the painter takes it home and his mother launders and restuffs it, adding a pink candy heart that says “I love you.” Now Raggedy Ann has a heart. The story and its famous illustrations were so popular that, of course, similar dolls were mass-produced by a manufacturer. I had one, with actual sewn-on “shoe-button” eyes (from back when, yes, shoes had buttons, well before my time), but later they were made with painted-on eyes.
Because they were all cloth, rag dolls tended to be very loose-limbed. They couldn’t stand up or even sit up without flopping over. So “like a rag doll” just means floppy and loose. A rag-doll cat is one of those cats that like to flop spread out on their backs, looking as if they had no bones. When you play with rag dolls, you do the animation by the way you hold and move them. They work just fine and do not need machines or computers inside. Also they are very huggable.