Verb
(idiomatic) To have endurance; to have prospects to exist or go on for a long time.
(nautical) To have speed.
Used other than figuratively or idiomatically: see have, legs.
Source: en.wiktionary.orgI spend 90 percent of my time saying no, and my accountant yells at me for it, but when I started in this business, I wanted my career to have legs. Omar Epps
Great loves have legs and wings. They are substantial. They do not dissapate so easily... Great loves have staying power. Or so I told myself. Erica Jong
I have legs of iron, but to tell you the truth, they're starting to rust and buckle a bit. Jeanne Calment
Who has no courage must have legs. Italian Proverb
Who has no head should have legs. Italian Proverb
Who has not understanding, let him have legs. Romanian Proverb