My hubby isn't fond of cats, and is trying to pretend he hates yamma. the other night we were in bed when yamma, jumped onto him and was purring really loud. he pretended to grumble, and said you sound like a motorbike. i know he likes her even if he won.t admit it. it is so cute to watch hem when he doesn't know i can see him. So that is the origin of her name it's all in fun.