A man who pursues and otherwise devotes himself to women to an unusual degree; lover-boy
A man who is attractive to many women: He's so conceited. Thinks he's a real ladies' man(1842+)
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D. Copyright (C) 2007 by HarperCollins Publishers. Cite This Source
Idioms and Phrases with lady men
lady's man. A man who enjoys and attracts the company of women. For example, Because women seemed to seek him out at parties, Brian got the reputation for being quite a ladies' man.
[ Late 1700s