A phrase commonly used by professional basketball player Rasheed Wallace; once famously yelled by coach Flip Saunders.

"Ball don't lie" is said when a player misses one, two or all three of his free throws after a questionable (read as: bullshit) foul call is made by an official. The ball is, essentially, the unbiased judge who will not reward the player by going in if the apparent foul was indeed bullshit.