bathplug
nounUK /ˈbɑːθplʌɡ/
US /ˈbæθplʌɡ/
A bathplug is a small round thing that stops the water from running out of the bathtub.
She pulled out the bathplug and the water gurgled down the drain.
OTHER MEANINGS
2. A plug used to seal the drain of a sink or basin.
He forgot the bathplug and the sink emptied slowly.
3. A person or thing that blocks progress or flow, used figuratively.
The broken bridge acted as a bathplug on the town's traffic.
4. A rubber or plastic stopper attached by a chain to the overflow of a bath.
The bathplug was chained to the tap so it wouldn't get lost.