As the axle rotates the motor wobbles, shaking the wood and generating ripples. The spinning Earth slowly wobbles over a period slightly less than 26,000 years. As they argue, the bus wobbles precariously. Orbital calculations show that Mars wobbles on its axis far more than Earth does. Not only does the Earth rotate, it wobbles. At moderate speeds it suffered speed wobbles. The mean displacement far exceeds the magnitude of the wobbles. Border Collie Collapse or "the wobbles" is a disease found in many herding/working breeds. Instead, over time, the species wobbles about its phenotypic mean. In Winners' Semifinals, Mango was sent to the Losers' Bracket after losing 1-2 to Wobbles.