(note that the word has a period because for some reason, my previous attempt at submitting this definition did not make it to the UD database)
1.A man who gets along well(romantically and/or sexually) and is pretty smooth and gallant with the ladies.
3.A Don Juan. A man who is indiscriminately promiscuous and likes to sleep with and have sex with whoever bitch strikes his fancy.
Synonyms: pimp, playa, Don Juan
1. Austin Powers(the main character by actor Mike Myers).
2. Yesterday, I busted my gat in that casanova's ass for trying to sell my woman!
3. I am a casanova and I can fuck any hot bitch so long as she don't have VDs or ain't monogamous! I see nothing wrong wit dat. *gets struck by lightning*