get on someone

If you need a map, here's James describing why he does what he does: "I think conflict, it builds character. It builds even more trust. You're able to get on someone, someone's able to get on you, and then the whistle blows and, let's get out and let's execute what needs to be done. I've always been like that since I was a kid."

“Something quirky, whatevs, if you want to get on someone’s shoulder’s—I mean, live it up,” she said.

“If you don’t take care of your plants, they’ll get on someone else’s plants,” Burns said.

So if you can manage to get on someone’s Wi-Fi network – which is easy if they have no password on it – you could take control of their home.