Motorist's Reversal is a term used to describe the action of a driver making a U-turn, which is represented by the crossword solutions UEY and UTURN. UEY stands for 'U-turn, Execute, Yield', which is a set of instructions for a driver to safely make a U-turn. UTURN is simply an abbreviation of the phrase 'U-turn'. Both terms refer to the same action of a driver reversing their direction of travel.