merrymaker

Example:The band had a jester among them who made the concert very lively.

Definition:A person who entertains others by telling jokes or small stories; a fool or court jester.

Example:He was not a good host; he got jealous if someone won and acted like a sore loser throughout the evening.

Definition:Someone who gets upset or tries to ruin a celebration because of their own disappointment, often by being overly loud and disruptive.

Example:At the corporate event, the bearbeiter was the life of the party, boosting the spirits of everyone present.

Definition:Though not commonly used in English, this term can sometimes refer to someone who is lively and enthusiastic in a party setting, bringing happiness and cheer.