Sheer off
Definition 1 of 2
Pro Tip 1/3Abrupt Movement
Describes a sudden and quick action, often to avoid danger or collision. 
The skateboarder sheered off to dodge the oncoming cyclist.
Pro Tip 2/3Quick Reaction
Used when someone or something reacts instantly to an unexpected situation. 
Seeing the falling tree, the bus sheered off into another lane.
Pro Tip 3/3Steering Control
Often involves handling a steering mechanism to change direction rapidly. 
The driver sheered off to the right to enter the bypass road.