IDIOMS

skirt chaser

(idiomatic) A man with amorous intentions who habitually seeks out female companionship.

Example: 1943 July 19, "The New Pictures," Time:
  Heaven Can Wait (20th Century-Fox) is a lengthy but frequently funny life history of an old New York skirt chaser (Don Ameche) from his brownstone puberty to his overripe old age.
1958, Robert Bloch, That Hell-Bound Train:
  That was the train the drunks and the sinners rode—the gambling men and the grifters, the big-time spenders, the skirt-chasers, and all the jolly crew.
2008 March 31, Anand Giridharadas, "Flirting by Text Message, Indians Test Social Limits," New York Times (retrieved 27 Oct 2012):
  He is an irrepressible flirt: a skirt chaser who claims to pursue three women at a time.