Jamban

"Jamban" is more like a made-up word in Malay.
It means "Toilet".

The "Jam" in it is another word that means clock.
This has been used to make jokes.
(Like Dad Jokes)
(Though the word-play is similar to Knock-Knock Jokes)

(In Malay)
A: Jam apa yang bau?
B: Apa?
A: Jamban.

(In English)

A: What clock is smelly?
B: What?
A: Toilet (Jamban)