
Be a tall order
Metaphorically High
Imagine the 'order' as something physically high, indicating the difficulty in reaching or achieving it.

Winning the championship against professional teams would be a tall order for our amateur club.
Not Impossible
The phrase suggests a daunting task but doesn't imply that it's impossible, just very challenging.

Landing a spacecraft on Mars is a tall order, but with enough research, it's feasible.
Game Context
Often used in sports or games to express that winning or succeeding against the odds is tough.

Coming back from a 3-0 deficit in the finals would be a tall order.
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