A person who plays a racket game, especially tennis.
Late 16th century; earliest use found in Richard Mulcaster (?1532–1611), schoolmaster and author. From racket + -er.
A person who enjoys a hectic social life; one who indulges in noisy and riotous entertainments.
Mid 17th century. Partly from racket + -er, and partly from racket + -er.