Green’s Dictionary of Slang

(US teen) one who pursues a wide range of young women.

1946

Pittsburgh Post-Gaz. (PA) 12 Mar. 9/8: Circuit Rider — Wolf who dates all the gals.

(Aus.) of a prostitute, to tour diggings and camps selling her services.

1901

Bulletin (Sydney) 7 Sept. 14/2: Re the lydies who ‘travel’ their charms [...] almost the only ‘business’ done, outside the Westralian goldfields, is – barring Japs – by women who ‘go on circuit.’.