noun / verb
bung
BUNG/bˈʌŋ/
A stopper for sealing a container, or to seal with one.
A wooden bung partly fills the barrel’s opening.

Etymology
The origin is uncertain, but the earliest recorded meaning is a large stopper for a cask. The word later also named the cask opening that the stopper closed.
In context
pounding that bung in nice and tight and then just taking some barrel wax and uh waxing the sides of the bung there to seal that up
More examples
- The loose bung allowed liquid to escape.
- She bunged the opening tightly.
- Remove the bung before draining the container.
Forms
bung · bungs · bunged · bunging
Similar words
- stopper
- Stopper is general; bung usually seals a barrel or similar container opening.
- cork
- Cork can name the material or a stopper made from it; a bung may be made from other materials.