Sentence:  The Rabbit could not claim to be a model of anything, for he didn't know that real rabbits existed; he thought they were all <WSD>stuffed</WSD> with sawdust like himself, and he understood that sawdust was quite out-of-date and should never be mentioned in modern circles. 
Meaning of the word marked with <WSD> tags:  To fill a space with (something) in a compressed manner.