A thing that someone says to cause amusement or laughter.

An absurd or ridiculous situation.

बेतुकी स्थिति (Betuki Sthiti)

English Usage: It was a joke that they thought they could finish the project in one day.

Hindi Usage: यह एक बेतुकी स्थिति थी कि उन्होंने सोचा कि वे प्रोजेक्ट एक दिन में पूरा कर सकते हैं।

To make silly or amusing remarks.

To act or behave in a foolish way.

मूर्खता करना (Moorkhta Karna)

English Usage: Don’t joke when it comes to serious matters.

Hindi Usage: जब गंभीर मामलों की बात हो, तो मूर्खता मत करो।