noun: 1. A string used to tie a shoe: shoelace.
2. A small amount.
adj.: Involving little.

ETYMOLOGY: From itinerant vendors’ selling of trinkets, threads, shoestrings, and other low-value items. Earliest documented use: 1616.

SHOESTRING - catching a ball just above your sneakers, a moment before it hits the ground

SHOO-STRING - a cord to flail around to ward off flies

SHOE-STING - when a bee gets you right on top of your big toe when you're wearing sandals