fifth wheel

US /ˌfɪfθ ˈwiːl/
UK /ˌfɪfθ ˈwiːl/
"fifth wheel" picture
1.

orang ketiga, pihak yang tidak diperlukan

a person who is in a situation where they are not needed or are superfluous

:
I felt like a fifth wheel on their romantic dinner.
Saya rasa seperti orang ketiga dalam makan malam romantis mereka.
When they started talking about their inside jokes, I knew I was the fifth wheel.
Apabila mereka mula bercakap tentang jenaka dalaman mereka, saya tahu saya adalah orang ketiga.