Examples:

• But a truck is kind of a tall order.
• That's a tall order to fill... from inside this cell.
• Mm, that's a tall order for you, Mary.
• That may seem like a tall order, but it is possible.
• That's a tall order for a vaudevillian.
• Well, two months... that's a tall order.
• Well, it's a tall order, but I'll do my best.
• This is a tall order, but the two young people rise to it.
• And that's a tall order for us lot.
• A tall order, and it took me a good few years to perfect.