元げん気き者もの

also: げんきもん

Meanings

1

lively person; energetic person; live wire

Describes a person who is always cheerful, active, and full of energy. Often used affectionately.

彼かれはクラスの元げん気き者ものだ。
He is the lively one in the class.
うちの祖そ母ぼは九きゅう十じゅっ歳さいだけど、まだまだ元げん気き者ものです。
My grandmother is 90, but she's still full of energy.