Hit it Definition 1 of 4Pro Tip 1/3Start Enthusiastically Used to express enthusiasm about starting an activity with vigor. We've got our plan—let's hit it and make this event a success! Pro Tip 2/3Action Prompt Indicates it's time to take immediate action or to proceed with a task. The boss approved our idea, so it's time to hit it. Pro Tip 3/3Group Activity Often said right before a group starts a cooperative endeavor or outing. Everyone arrived for the hike? Great, let's hit it!