"If we stay here, we are dead anyway," Kaela replied. She keyed the ship-wide intercom. "All hands, brace for emergency maneuvers. We are not defending this line. We are breaking it."

Galactic Limit: Final Hold – How to Play for Free and Master the Void

The phrase most likely originates from the modding communities of games like Stellaris , Sins of a Solar Empire , or the X4: Foundations series. In these games, the "Galactic Limit" is a soft or hard cap on fleet power or empire sprawl.