Examples:

• That's why he worked so hard, to give you a leg up.
• If you could keep your leg up for me, that'd be great.
• That gives you a leg up on the average citizen.
• Who says I want a leg up on anybody?
• Just helping the youth of America get a leg up.
• I think that James has a real leg up over the other two.
• Surely, after all this time, he deserves a leg up.
• Who says I want a leg up on anybody?
• Just trying to give you a leg up.
• I think it would give you that leg up you want.