The phrase "luck of the draw" means that the outcome of a situation depends entirely on chance or random selection, rather than skill, effort, or planning. It suggests that whatever happens is due to luck or fate, much like drawing a card from a shuffled deck or picking a name out of a hat.

Example:

• "Getting a good seat at the concert was just the luck of the draw."
• "Whether you get the easy or hard questions on the test is the luck of the draw."

In short, it's about things happening randomly and unpredictably.