tubplug
nounUK /ˈtʌbplʌɡ/
US /ˈtʌbplʌɡ/
A tubplug is a small rubber thing that stops water from going down the drain.
She pulled the tubplug out so the bath water could drain away.
OTHER MEANINGS
2. A plug used to seal the drain of a sink or basin.
He forgot the tubplug and the sink water ran straight out.
3. A person who stubbornly blocks progress or refuses to move.
The old tubplug on the committee kept every new idea from passing.
4. A small rubber cap that keeps water inside a portable tub or cooler.
Pack the tubplug so the cooler doesn't leak in the car.