A male goat, specifically one that is adult or fully grown.

Often used metaphorically to describe a stubborn or aggressive person.

जिद्दी या आक्रामक व्यक्ति

English Usage: He’s a real billy goat when it comes to negotiations.

Hindi Usage: वह बातचीत में सचमुच एक जिद्दी व्यक्ति है।