A conversation, often informal.

बातचीत

English Usage: They enjoyed a good chin wag over coffee.

Hindi Usage: वे कॉफी के दौरान अच्छी बातचीत कर रहे थे।

To move or swing something back and forth.

हिलाना

English Usage: He wagged his finger to express disapproval.

Hindi Usage: उन्होंने असहमति दिखाने के लिए अपनी अंगुली हिलाई।