A narrow and winding road as twisty as a sheep's intestine, often used to describe mountain paths; (fig.) a complicated and tricky job or task

A strong, elastic thread made from sheep intestines, used for surgical sutures or stringing sports rackets; it is typically absorbable by body tissue when used in surgery.

A narrow, twisting path or mountain road, literally as winding as a sheep's intestine.

A narrow, winding, and dangerous mountain track; used to describe any extremely difficult road to travel.