'Lothario' definitions:

Definition of 'Lothario'

From: WordNet
noun
A successful womanizer; a man who behaves selfishly in his sexual relationships with women

Definition of 'Lothario'

From: GCIDE
  • Lothario \Lo*tha"ri*o\, n. [Name of a character in Rowe's drama, "The Fair Penitent."] A gay seducer of women; a libertine. [1913 Webster]