Wiktionary
vb. (context idiomatic English) To start early, especially before something begins or before others begin; to get a head start.
Usage examples of "get a jump on".
Better to get a jump on all of them, at a trivial risk to the ship, rather than giving them all time to stop the flight.
What she really needed was a way to get a jump on her peers at the school itself.
I'd not suppose the Hunt has left Illian, yet, but maybe some don't think they really need the blessing, and they'll get a jump on the others by missing it.
It's the kind of technology that Tice has to get a jump on right now so he can become the world's first trillionaire a couple of decades down the road.
Once we have the location, we can get a jump on Haydon's ships, beat 'em to the pass.