Edwina does this on certain chairs. It is (I believe) her nail sharpening behavior or scratching post behavior. There's only two places where she does this. The "skirt" on a wicker chair and the top of a wing chair where she greets me. It is different that her "bread making" which she does mostly on her poppa's tummy (giggle.)

Unfortunately, it hasn't done a thing for her weight. That would require less turkey!