Meanings
From a baseball batting average, often stated as the number of hits per 1000 at bats- 1000 would be 100 percent.
How to pronounce "bat a thousand":
AU
To reach first base on every at-bat.
To achieve success at each attempt.
Example: "He's batting a thousand so far with the new boss."
To achieve perfection.
Example: "No one can bat a thousand for the whole season."
To have identical outcomes with each attempt.
Example Sentences
1
He was confident in his ability and managed to bat a thousand in the baseball game.
2
After practicing for weeks, she was able to bat a thousand on her piano recital.