Fishtail is a type of maneuver used in driving, sailing, and aviation. It involves a sharp turn in one direction followed by a sharp turn in the opposite direction. The crossword solutions for the term fishtail are YAW (3 letters), SKID (4 letters), and SLUE (4 letters). YAW is a type of rotation around a vertical axis, while SKID and SLUE are both terms used to describe a vehicle's loss of traction and subsequent sliding motion.