Wiktionary
vb. 1 (label en British NZ) To close an opening with a cork, cork like object or other improvised obstruction. 2 (label en obsolete slang) To use up, as by bruising or overexertion; to exhaust or incapacitate for action.
Usage examples of "bung up".
Those casks are now as every shipment of wine has been stowed since I was ten years old, bung up and bilge free, fore and aft, ends wedged off in the wings.
In the same way Jack's views on humidity did not prevent him from drinking up his whole private store of East India pale ale, nor from going over their supplies of water with the master again and again, adding up what was left in the 159 gallon leaguers of the ground tier, the 1o8 gallon butts, the hogsheads and half hogsheads, laid bung up and bilge free in the wings, and coming to a most discouraging sum total.
The Leopard's last boat-loads of water were coming aboard, the great casks plunging from the main-hatch into her bowels and there rolling to their place, growling as they went, ton after ton ranged in the echoing hold, bung up and bilge free.