show one's heels

Also, show a clean pair of heels. Run away, flee, as in He wanted to ask her out but she showed her heels before he had a chance, or As soon as the burglar alarm went off, the housebreaker showed a clean pair of heels. The backs of one's heels are exactly what is seen when one is running away, but the allusion of clean is a bit puzzling, unless it is meant in the colloquial sense of “thorough,” as in a clean getaway. [First half of 1500s]

Words nearby show one's heels

show of hands, show off, show one's colors, show one's face, show one's hand, show one's heels, show one's teeth, show one's true colors, show pony, show signs of, show someone a good time