Could you lend me a hand?

Meaning

Could you help me?

Examples

• John: This box is too heavy for me to move alone.
• Alice: <b>Could you lend me a hand</b>? I need to move some furniture as well.
• John: Sure, let's do it together. How can I help?
• Alice: Great! Thanks so much, I really appreciate it. I'd be stuck without you; <b>Could you lend me a hand</b>?