show someone or something a clean pair of heels
show (someone) a clean pair of heels
To run or move away from someone at great speed. He showed the mugger a clean pair of heels, skittering down a side alley and escaping out of sight. The runner showed her competitors a clean pair of heels as soon as the race began, and she maintained a comfortable lead throughout.
show someone or something a clean pair of heels1 run away from someone or something as fast as possible. 2 demonstrate clear superiority to someone or something.
2 2002 Tom's Hardware Guide How fast does a PC fitted with the most powerful hardware have to be in order to show a clean pair of heels to the world's best PC systems?