hang tight

From hang + tight, possibly in part from a blend of hang on + hold tight.

• "And should a really large payoff be hit, a jackpot, the machines will make a bunch of noise, a light may go off atop the machine and you just hang tight, a casino employee should be there soon to give you the payoff."
• "The day before I was supposed to fly out I called my friend Mike back home and explained what was happening and he told me to hang tight while he tried to figure out what to do, he knew his friend Phil who was an Ex Marine who once served under Mikes command, was working out here and luckily for me he was based on VBC, so he asked him for a favour, to hide me until he felt it was safe to fly me out, Mike then called me back and gave me Phil's number, and that he was expecting my call when I arrive on Victory."
• "I'll call you back when I've got someone in the air. I'll need your coordinates at that time. In the interim, you're going to have to hang tight, buddy."
• "“Hang tight.” He heard the feet running away again. Robie looked down at Julie and back over at the window. He wasn't hanging tight. He pulled out his phone, thumbed Vance's number."
• "Hang tight, Mr. Hampton. Let me run you through the system, write your ticket, and we'll have you on your way soon."
• "I'm gonna call Captain Doby and talk to him about your situation. In the meantime, you guys just hang tight until we get back with you."
• "“Noah, if you want more, I need to be able to go out and get it.” “I know, I know,” he said. “I'm just saying hang tight till Monday.”"
• "“Okay mom, you need to hang tight and we need to figure out a plan. Don't do anything yet. We are on our way.”"
• "“For now, just hang tight.” “Hang tight?” Hattie cried. “My baby girl is in danger and you're telling us to hang tight?”"