Why Do Cats Vibrate Their Tail? This Is What They Might Be Signalling With It We Love Catz Cat Tail Twitching: What Does it Mean? Whitney Veterinary Hospital What does it mean when a cat's tail vibrates? What does it mean when a cat's tail vibrates? What does it mean when a cat vibrates its tail? Replying to @Nicole what does that cats tail movement mean?#fyp #catbehavior #cattok #cat #petbehavior