as fast as your legs can carry you

as fast as (one's) legs can carry (one)

As fast as one can run away. You need to get away from here as fast as your legs can carry you—it's too dangerous!See also: can, carry, fast, leg

as fast as your legs can ˈcarry you

as quickly as you can: When he heard the police sirens, he ran off as fast as his legs could carry him.See also: can, carry, fast, leg