bung up verb3 •(UK, New-Zealand) To close (an opening) with a cork, cork-like object or other improvised obstruction.He used a piece of putty to temporarily bung up the leaking gutter. •(UK, New-Zealand) To block or obstruct (an opening or passage).The fallen leaves were bunging up the drain.By dose is bunged up with snot! •(slang, no longer used) To use up, as by bruising or overexertion; to exhaust or incapacitate for action.He had bunged up his mouth that he should not have spoken these three years. — 1612 formsbunged up · bunging up · bungs up