The high heels of his formal pumps slipped on the gravel path.

The heels should not slip when you walk.

It starts to rain, and her high heels slip and twist beneath her.

Loose heel Problem: Your heels slip up and down.

Moe's high heel slipped while skipping, resulting in a sprained ankle.

My heels slipped out of the back.

The heel may slip up and down a little at first, but the slippage should decrease with time.

One spiked heel slipped through the iron grating underfoot, and with a curse she pulled off the shoes.

It flew with deadly accuracy, piercing straight through the man's mouth, open in surprise as his right heel slipped on one of the rubber bearings.

Suddenly Fleur's high heel slipped from beneath her, and she pitched headlong down the stairs.