Right off the bat, Informal. At once; without delay------The Oxford English Dictionary dates this term to 1914 in Maclean's, a Canadian magazine. An older term, "hot from the bat" dates to the 1888 playMeisterschaft by Mark Twain.[98]
It's an English cricketing term from the 1900s meaning immediately or right away.Once the cricketer had hit the ball with his bat, he had to run between the two stumps to score a run for his team.