To produce or create something very hastily. A noun or pronoun can be used between "bat" and "out." A: "I can't believe he batted out three papers in one day." B: "I bet he doesn't get very good grades on them though."
batted out
Arrested or apprehended. Well, I had to go down to the police station this morning because it seems that my son was batted out last night on his way home.
bat out
v.
To produce something in a hurried or informal manner: The new store owner batted out thank-you notes to his first customers all morning. I don't have time before the big party to bake hundreds of cookies, but I think I can bat a few dozen out.