1) Car safety 2) Swerving from side to side 
Fishtailing (also called `tank slapping`) is a vehicle handling problem which occurs when the rear wheels lose traction, resulting in oversteer. This can be caused by low friction surfaces (sand, gravel, rain, snow, ice, etc.). Rear-drive vehicles with sufficient power can induce this loss of traction on any surface, which is called power-overst.....
A rudder-controlled side-to-side [yawing] motion to reduce air speed, generally prior to landing.
The side to side motion of the nock end of an arrow in flight.
Swinging the tail of an aeroplane from one side to another when coming in to land in order to shorten the glide and landing run. It is an alternative manÅ`uvre to sideslipping.
A rudder-controlled side-to-side [yawing] motion to reduce air speed, generally prior to landing.
Movement of arrow from side to side during flight.