stretch one's legs
Fig. to walk around and loosen one's leg muscles after sitting down or lying down for a time. We wanted to stretch our legs during intermission. After sitting in the car all day, the travelers decided to stretch their legs.
stretch one's legs
Stand up or go for a walk, especially after a prolonged period of sitting. For example, Let's go stretch our legs at intermission. [c. 1600]
stretch (one's) legs
To go for a walk, especially after a lengthy period of sitting.
stretch one's legs, to
To stand up or go for a walk in order to relieve muscular stiffness or for the exercise. This term has been around since the seventeenth century. Izaak Walton used it in The Compleat Angler (1653): “I have stretch’d my legs up Tottenham Hill to overtake you.”