ムードメーカー

noun

mood maker; life of the party; person who lifts the atmosphere

A wasei-eigo term for someone who brightens the mood of a group, often through humor, energy, or positivity. Commonly used in casual conversation about social gatherings, teams, or workplaces.

wasei-eigo (Japanese-coined English), from mood maker

• 彼かれはクラスのムードメーカーだ。

  He is the mood maker of the class.

• 飲のみ会かいでムードメーカーがいると盛もり上あがる。

  A party gets lively when there's a mood maker.