足あしを伸のばす

expression, godan verb (-su)

stretch one's legs out; relax with legs extended

Physical action of extending the legs, often to relax after sitting or being in a cramped space.

• 新しん幹かん線せんで隣となりの席せきが空あいたので、足あしを伸のばして座すわれた。

  The seat next to me on the Shinkansen was empty, so I could sit with my legs stretched out.

expression, godan verb (-su)

go a little further; extend one's walk

Idiomatic use: after reaching a destination, to continue walking a bit more to another place, often for leisure or sightseeing.

• せっかく京きょう都とに来きたから、嵐あらし山やままで足あしを伸のばそう。

  Since we came all the way to Kyoto, let's go a little further to Arashiyama.