Walking Dead episode names don’t follow specific patterns with it comes to their meanings, though showrunner Scott Gimple and his creative team clearly give the titles a lot of thought.
This sequence of events that stands out as one of the best on the page, and though Negan’s rallying cry was a single word there, it’s not a stretch to believe it’ll happen that way, thus corresponding up with my desire for this episode to be the one where everything goes kablooie.
But the title in this case, as reported by SpoilerTV, “Do It Now” sounds a lot like a signature Gimple remix of Negan’s cry to The Saviors that kicked off a huge attack on Alexandria and set the All-Out War in its deadly motion.