To be in a position of advantage over someone else. One must always be looking for ways to have a leg up on the competition if one wants to succeed in business.I've been practicing all summer long, and now I finally have a leg up on Keith in tennis.
have a leg up on someone
tv. to have an advantage over someone; to be ahead of someone. (Have got can replace have.) Pete has a leg up on Wilbur because of his physical strength.