精力絶倫
Meanings
1
na-adjective, noun which may take the genitive case particle 'no', noun
unbounded energy; matchless vigor; endless sexual stamina
A yojijukugo describing someone with extraordinary energy, often with a strong sexual connotation. Used as a noun or adjectivally with な or の.
He has boundless energy and works from morning till night every day.
He is famous as a man of inexhaustible vigor.